Php script read excel file jobs

I am seeking a skilled freelancer to guide me in creating Power Automate flows that efficiently import data from a single worksheet Excel document into Dataverse. Key Tasks: - Develop a couple of Power Automate flows to import Excel data into Dataverse. - I have had many difficulties with date and lookup/choice columns not correctly importing. Ideal Candidate: - Expert knowledge and experience in Power Automate. - Proficient in Data Integration between applications. - Knowledgeable in creating approval workflows and automated notifications. - Previous experience with Excel-data integration into Dataverse. - Excellent communication skills.

I am looking to create an Excel tool that will streamline our disbursement process. The tool needs to handle data entry automation, calculation of disbursement amounts, and generation of disbursement reports. Key Features: - Data Entry Automation: This will help us input information quickly and without errors. The tool should automate data entry to reduce human error and increase efficiency. - Calculation of Disbursement Amounts: Once the data is entered, the tool should automatically calculate the disbursement amounts based on predefined criteria. This will help us ensure that the amounts are accurate and consistent. - Generation of Disbursement Reports: After the calculations are done, the tool should be able to generate reports in a clear and user-friendly format. This will h...

...full-stack JavaScript developer to help construct a remarkable web application. While I don't necessarily have a preference for the specific platform, I'd appreciate it if the developer can provide recommendations and explain their platform choice, whether it's React.js and Node.js, or Angular.js and , or Vue.js and Django. Your role will encompass both front-end and back-end development. To excel in this job, you need to have: • A strong grasp of full-stack JavaScript development • A robust knowledge of various frameworks • Experience in building web applications • Excellent problem-solving abilities and detail-orientated approach • Strong communication skills to ensure clear discussion of the project details and progress This project...

I'm currently in need of a competent individual proficient in data entry tasks. The ideal candidate must have strong experience and skills in managing and operating data with Excel Spreadsheets. Your task revolves primarily around: - Data entry into an Excel Spreadsheet Experience with Excel Spreadsheets is a must for this project. Perfect attention to detail and accuracy are vital. Applicants should be able to work autonomously and deliver high-quality results. Please note that the type of data to be handled has not been specified; it may include text, numerical, or image data.

I'm in need of a skilled and exp...sales patterns. - **Data Type**: The data provided for this project is structured, primarily in Excel and CSV files. Your ability to effectively manipulate and analyze this data will be crucial. Ideal Skills and Experience: - Proficiency in Azure and strong experience in running ML models on the platform - Proven track record in customer segmentation and sales data analysis - Ability to work with and manipulate structured data effectively, particularly in Excel and CSV formats I'm looking for someone with a solid understanding of sales data and a keen eye for customer segmentation. If you're confident in your ML skills and Azure proficiency, I'd love to hear from you. The attached file is a dummy file ju...

I have a PDF file that I need to be converted into a Word document. My main purpose is to extract the text from the PDF and have it in a Word format, as I need to manipulate the content. Key Requirements: - Conversion of PDF to Word: I need the text to be extracted from the PDF and accurately inputted into a Word document. - No Specific Formatting Requirements: I don't have any specific requirements in terms of text formatting. The main priority is extracting the text. Ideal Skills and Experience: - Proficiency in PDF to Word conversion: The freelancer should have experience in extracting text from PDFs and converting them to Word documents. - Attention to Detail: It's crucial that the freelancer ensures the accuracy of the text extraction to avoid any possible errors. -...

I require a photorealistic rendering of a product using a high-resolution image from my step file. This rendering is going to be used for product visualization purposes. Key Requirements: - The step file already contains all necessary details including colors and materials to be used in the rendering. - The preferred perspective for the final rendering is a front view - refer to Ideal Skills: The ideal freelancer for this project must have a strong understanding of graphics and rendering techniques capable of producing high quality, photorealistic images. Experience in creating product visualizations from step files and a keen eye for detail regarding perspectives and angles is additionally required.

I have a small project that requires the entry of structured text data. The project will involve: Ideal candidate would have a strong attention to detail, excellent organizational skills, and a background in data entry. Experience with structured data formats is a plus. This should be a fairly quick task, but accuracy is key. I will share you more details in via chat box. Thanks

This project requires a freelancer with advanced skills in Excel. I am outsourcing tasks revolving data management. Key Aspects include: - Advanced manipulation of Excel functions - Complex calculations - Refined data analysis When applying, please focus on: - Your practical experience with similar tasks Having realized the depth of this project, it's pivotal that you have an advanced understanding of Excel. Ideally, your background should perfectly align with data management, advanced calculations, and analytical tasks. Demonstrating this through past projects and describing your specific insights gained from those experiences will be a big plus.

I'm in need of a C# program that can hash files as quickly as PowerShell does. The program should be able to hash image files and all other types of files at the same speed, while utilizing the SHA-256 hashing algorithm. Additionally, it would need to read and write data efficiently. Key requirements: - Develop a C# program to hash files. - Implement the SHA-256 hashing algorithm. - Ensure the program reads and writes data smoothly.

...skilled freelancer to undertake a multifaceted project involving the detailed completion and enhancement of a CSV file for upload to Square. This extensive project requires three core competencies: meticulous data extraction from our website, proficient data entry into an Excel form, and the creation of engaging service descriptions using AI tools. The ultimate goal is to craft a CSV file that not only meets but exceeds the requirements for Square's platform, ensuring a seamless upload process. Key Responsibilities: Data Extraction and Accuracy: Initiate the project by extracting data from specific sections of our website. This data must be accurately transcribed into an Excel form, adhering closely to the required fields. Attention to detail is paramo...

I need a meticulous Pinescript programmer to create custom alerts and visually mark specific zones on TradingView charts based on my detailed specifications. Ideal candidates will be proactive in clarifying any ambiguous instructions and possess a strong focus on accuracy. Key duties of this project include: Based on 15min Chart: a. Mark out Asia High and Low b. Mark out Cumulative Order Zones (COZ), also known as Fair Value Gap based on my definition c. Mark out Order Block (OB) based on my definition d. Mark out Liquidity Gap Zone (LGZ) based on my definition e. Alarms/alert whenever these occur: ei. Moment when price action sweeps Asia High or Low, and then enters COZ or OB zones, with an inefficient price movement in the 5 min chart eii. Moment when price...

I'm looking for an experienced Pine Script developer to resolve a syntax error and implement a script that tracks short and long highs/lows with Fibonacci levels in TradingView. The script should: Track the short high using a 100-bar lookback period. Determine the short low from the lowest low after the most recent highest high. Track the long high/low based on the selected date range. Include customizable options for line colors, widths, and visibility. Draw Fibonacci levels between long highs and lows. An error occurs with the if statement, and I need help to fix it and ensure the script works correctly without syntax issues. If you're experienced with TradingView's Pine Script and can resolve this error while maintaining the intended f...

Please Sign Up or Login to see details.

I need a professional to extract Pine Script code from a private TradingView script that I have. - I need the entire source code extracted - The script includes multiple indicators and strategies - I need a functional copy of the extracted Pine Script code Ideally, you should have: - Prior experience working with TradingView and Pine Script - Capable of handling private or invite-only scripts - Understanding of various technical indicators such as Moving Average, RSI, and Bollinger Bands. Please note that the extracted code should be fully functional and operational.

I'm in need of an expert in trading view pine script programming who's capable of merging two indicators in one. Your task will be: - Merge the Two indicators into a single script on the Trading View platform. - Incorporate Fibonacci (Fib) levels in the script, but specifics were not indicated. We can discuss that further. 1. **Combine Indicator Logic**: - Integrate the logic from both indicators into a single script. - Ensure that the functionality to track highs, lows, and Fibonacci levels is preserved. - Maintain separate sections for calculating highs and lows, as well as for drawing Fibonacci lines. 2. **Adjust Inputs Interface**: - Rearrange the input section to display inputs horizontally for better organization. - Add new inp...

** Urgent Need ** I need 1 Script Description Content every day each one will be short 100-200 Words. Video Will be provided. Content Topic/Type Example: The Content should be like this type of topic and 100% unique and related to the subject. All the content should be well-researched and have accurate information. The budget is $10 Per Content. Newbies are highly welcomed.

I require an Excel specialist proficient in creating dynamic and functional spreadsheets. This project involves designing a new Excel sheet that handles both numerical and text data. You would need to: - Set up the sheet, capable of performing multiple features such as automated calculations and conditional formatting rules. - Configure simple calculations for GP indicators basing on specific cost prices. - Ensure the spreadsheet can efficiently process a mix of numeric and text data. Strong skills in Excel and data management are essential for this project. Familiarity with advanced Excel functions and an ability to provide quick, efficient solutions to data processing problems would also be very beneficial. A good understanding of GP indicators and cost pri...

I'm seeking a professional with a strong background in Excel to develop a keyword search tool for an Excel database. This tool will primarily be used for filtering data and linking to articles hosted on a network. Key Requirements: - Experience creating and managing Excel databases - Proficiency in implementing keyword search tools in Excel I would like the sheet to have a Main/Search Page and another page for the database. I want to be able to add new entries to the database section and have them be searchable on the main page. I want to be able to create new searchable keywords on the database page and have them populate and be searchable on the main page. I would like to be able to enter multiple search terms into the search box to narrow the results....

I need this to be done IMMEDIATELY! - Extract data in a specified format. - Transfer data from the price listing PDF to an Excel spreadsheet. - Input details such as SKU, Name, Description, Brand, Cost Price, Length, Width, Height, and Weight, which are highlighted in blue. - If any title or heading is not mentioned in the details provided in item #3, add it to columns U-Z. - Ensure all data is formatted correctly, with names in proper case and prices as numerical values. I'm in need of a proficient data entry freelancer to help convert a scanned image PDF to an Excel spreadsheet. Key Details: - The PDF contains less than 50 pages. - The data in the PDF is in the form of scanned images, making it crucial that the freelancer has experience in handling this ...

I have a php script website that lets me enter employee hours. been 1 month it has been extremely slow when I enter a new entry loading takes a long time. Need to fix. Also if able to add feature such as bulk entry and ability to write notes on an entry.

...need a PHP script created that integrates with the XTB Trading API to perform 5 key functions. i have already done the and have got the session_ID token. This is an easy project and this should take around 4 to 5 hour max for a good PHP Coder Key Functions: - **Login**: The script should be able to log in to the XTB Trading API using the provided login credentials and OAuth token. - **Get Current Trades**: The script should be able to retrieve information for current trades, specifically the Trade ID. - **Open Trade**: Allow creating a new trade using the API. - **Delete Trade**: Allow deleting an existing trade. - **Create / Delete Order**: Implement the ability to create or delete an order. Key Requirements: - Expertise in PHP and API

...management tools for online visibility. - Social media integration features for profile and job post promotion. Color Scheme: - Feel free to propose color palettes that reflect a tech-savvy, trustworthy, and innovative platform. - Consider accessibility and readability when selecting colors, ensuring that the application is user-friendly for all users. Typography: - Select fonts that are clean, easy to read, and modern. - Ensure that your font choices complement the overall design and enhance the user experience. Contest Guidelines - Submissions should focus on functionality, ease of use, and aesthetic appeal. - Designers should provide mockups for desktop and mobile views. - Please ensure that your designs are unique, practical, and cater to a professional audience. Delivera...

**Your Bidding Amount is Final. No change allowed later**##Please read the attached file for details## I have an existing Online Stamp Inventory for Postal Stamp Collectors in my site. It is made in CakePHP. I need to add some features to it and repair current feature. I want to add Export feature, improve search feature and add the feature of uploading images/document, repair Year field, URL field etc, make the current captcha and email verification system better. Further, I want to dedicate one user as Admin. Admin gets all features like common users. Only difference is Admin can see user details like their username, email ID and registration date and can export it. No seperate Admin panel needed. See the site: This is very easy Project

I require, a professional with keen knowledge of Python and ArcGIS Pro, to create a script that can convert my ArcGIS Pro lyrx documents into the Geostyler format. The script must include the conversion of colors, labels, symbols, and fonts. Any individual with substantial experience and demonstrated skills in this field is strongly encouraged to bid. We are aware there are many libraries out there that can convert into many formats but not directly. We are ok with the document being converted several times as long as the end results are correct. We need this completed as soon as possible. Ideal Skills: - Proficiency in Python programming language - ArcGIS Pro expertise - Understanding of mapping elements including colors, labels, symbols, and fonts - General know-how o...

I need a skilled PHP, JS, and Bootstrap developer who can create two pages for me. The first page will be based on Mapbox and should offer zoom in/out functionality. The second page will be used for adding new pins to the map dataset. Here's what I'm looking for in each page: - **Mapbox Page** - Implement zoom in/out functionality. - **Add New Pins Page** - Allow users to add new pins by typing the beginning of an address, which will then be automatically found using the Mapbox Geocoding API. - Display an overlay with basic info about the new pin. Ideal Skills & Experience: - Proficiency in PHP, JS, and Bootstrap - Prior experience with Mapbox and its Geocoding API - Strong understanding of UI/UX principles for web applications - Ability to create seamle...

I am seeking a skilled freelancer to guide me in creating Power Automate flows that efficiently import data from a single worksheet Excel document into Dataverse. Key Tasks: - Develop a couple of Power Automate flows to import Excel data into Dataverse. - I have had many difficulties with date and lookup/choice columns not correctly importing. Ideal Candidate: - Expert knowledge and experience in Power Automate. - Proficient in Data Integration between applications. - Knowledgeable in creating approval workflows and automated notifications. - Previous experience with Excel-data integration into Dataverse. - Excellent communication skills.

...(such as resistors, transistors, and capacitors), wires, etc. on a site such as AliExpress, Mercado Libre, etc. The ESP32 is similar to an Arduino. I realize it may take you up to 30 (thirty) days to obtain these items. That's fine with me. However, I will * not * help you deal with corrupt local customs officials who require bribes to release goods. Any “horror stories” you might have heard or read about corrupt local customs officials in your country requiring bribes to release goods probably were for items such as expensive phones and laptops, not a bunch of simple electronics components. Put simply: I suppose a customs official looking at an iPhone 14 Pro might think, “Wow! This is an expensive phone. Yeah, this guy has money. Let me get a bribe o...

I'm seeking a proficient freelancer with experience in unpacking Themida v2-protected DLL files. The unpacked file is intended for analysis and research, and there's no need for detailed documentation. Key requirements: - Proficiency in unpacking Themida v2-protected files - Previous experience working with DLL files - Ability to efficiently provide the unpacked file Your primary task will be to successfully unpack the DLL file, providing me with the unpacked version for further analysis. Your expertise in this area is crucial. Please note that detailed documentation on the unpacking process is not required, only the unpacked file itself.

I'm in need of a freelancer who can automate my Excel spreadsheet to increase efficiency and accuracy in data entry and analysis. Key Duties: - Automate data input, validation, and manipulation - Perform calculations and formulas automatically - Generate reports and summaries for the data Ideal Skills: - Proficiency in Excel - Excel input form design - Previous experience in automating data entry processes - Understanding of data manipulation

I'm seeking an experienced Google Script specialist to automate tasks and manage data for my project. Here are the specifics: Automating tasks: Your main responsibility will be to automate data import/export processes using Google Script. I need to take the data attahed to a daily email in excel format, upload this data (and historic) to a data base and then allow to consult that data from different spreadsheet in google with a query. Ideal skills and experience include: - Proficiency in Google Scripts and automation - Experience in data management - Google spreadsheet analisis reports If you have the needed expertise, I'm excited to work with you!

I'm running a new PHP script on Linux and it's not pulling data correctly from an MSSQL Database. Since the script is new, I'd appreciate some help identifying what went wrong. Skillsets and Experience Needed: - Proficiency with PHP and MSSQL databases - Experience troubleshooting PHP script issues in a Linux environment - Experience with new script debugging - Knowledge of database connectivity issues and their solutions - Ability to communicate complex technical issues clearly

I'm in urgent need of a professional who can assist with pushing my source code files to an existing repository on GitLab. Key Points: - The task is solely focused on pushing source code files. - A new repository doesn't need to be created, we will utilize an existing one. - The existing repository has files inside of it. I cloned this repository and zipped it and sent it to my friend. - The source code files have been amended by my friend on his computer. He has sent me the updated files. I want to push these files under my name and account details. - You must be an EXPERT at Git. Not a regular user but an expert in case something goes wrong. The ideal freelancer for this project will be someone who is experienced with GitLab and has prior experience with pushing and mana...

I have an old web project built on PHP 5 and MySQL. I need a skilled developer to migrate the project to PHP 8. Skills and Experience Needed: - Expertise in PHP and MySQL - Proficiency in web development - Experience in migrating legacy code

Looking for assistance with enhancing and modifying my PowerPoint file. It contains the procurement steps from start to finish, but the current block flow diagram is quite basic. I'm looking to redesign the diagram to make it more visually appealing and clear, especially for presenting to higher management and for printing purposes. The objective is to ensure that the workflow is easily understandable at a glance. Here are the key points: Enhance and modify PowerPoint file with a focus on the block flow diagram. Redesign the diagram to make it clearer and more efficient. Ensure that the final design is suitable for printing and presenting to higher management. My initial budget for this project is $15, but I'm open to increasing it if the job is comple...

I'm in need of an intermediate PHP developer from Egypt who can handle both frontend and backend development to perform a specific task on an existing project . Key Requirements: - Intermediate level of experience in PHP. - Proficiency in both frontend and backend development. - Experience with a variety of web development tools and frameworks. Looking forward to your bids!

I'm seeking an experienced Pine Script coder to develop a custom hybrid trading strategy on TradingView for me. This strategy will be a combination of an indicator and a reversal strategy. Key Requirements: - You will be working with the Coral Trend Indicator as the primary indicator for this strategy. - The reversal strategy should incorporate multiple elements: - Candlestick patterns - Support and resistance levels - RSI divergence Entry Criteria: - The trading strategy should trigger based on: - A breakout of a support or resistance level - Formation of specific candlestick patterns - Confirmation of RSI divergence Your task is to write the Pine Script code to implement this strategy. Please get in touch if you're interested, and I will share the f...

I'm in need of an expert in trading view pine script programming who's capable of merging two indicators for my strategy. Your task will be: - Merge the Two indicators into a single script on the Trading View platform. - Incorporate Fibonacci (Fib) levels in the script, but specifics were not indicated. We can discuss that further. Ideal candidates should have: - Good understanding of Trading View's pine script and trading indicators. - Experience in scripting Moving averages and Bollinger Bands. - Knowledge on incorporating Fibonacci levels. Please bid with examples of similar work you've done in the past. I'm looking forward to your proposals.

I'm in need of an application that prints labels from an Excel spreadsheet. The scope is to print personalized employee labels with names and respective earnings for cash payments. Key project features: • Read an Excel spreadsheet in a consistent format, with different entries for each worker's name and earnings. • Print labels with the worker's name and corresponding earning. Candidates should have: • Extensive experience in programming • Familiarity with reading data from Excel • Expertise in printing functions Just to clarify, the format of the spreadsheet will always be the same, only the contents (worker names and earnings) will differ. Please ensure the program is capable of handling this accuratel...

I'm in need of a proficient social media manager who can post daily content on Facebook, Instagram, TikTok, and other platforms through Loomly. The job will mostly entail modification of existing content. However, your creative input is most welcome. There is an official step-by-step Process to follow. Minor Excel reporting is required as well. I need somebody who is proficient in English-written and listening/talking. Must be able to work in a New York time zone between the hours of 12 PM and 8 PM. Roughly 2-3 hours a day total Monday-Friday at $30 a week! This role requires: - Excellent understanding of these four platforms - Proven ability to edit and modify existing content in an appealing way - Capacity to deliver consistently on a daily basis - Attention-to-detail...

...Freelancer – I will decide on the project in 3 days. The business evaluator estimates what your business is worth and offers a blueprint for scaling your business to the next level. The blueprint will establish your business baseline, identify your peer group, and advise you on what you need to do (people and budget) to accelerate to the next peer group level. Currently: 1) Written in MS Excel and utilizing Macros for a. Navigation between Sheets b. Set a subscription, 1st time the Worksheet is run, it writes a date in a database worksheet 2) There are 2 worksheets for Input: a. Customer Main Input Screen - worksheet (90% of the application runs off data from this worksheet i. The information from this worksheet is utilized for all 8 other reports (worksheets...

Please Read the Project Documentation DO NOT OVER BID OR UNDER BID . READ THE DOCUMENT AND THEN BID . I'm looking for a skilled WordPress developer who can help me build a customized, responsive, and mobile-optimized website within 30 days. Key Requirements: - Custom Design: Create and integrate unique design elements that align with my brand and vision. - Third-Party Services Integration: Implement social media sharing and email marketing platforms. - Advanced Functionality: Develop additional functionalities to enhance user experience. The ideal freelancer for this project should have: - Extensive experience in WordPress website development and customization. - Expertise in integrating third-party services like social media sharing and email marketing platfo...

I'm seeking a talented developer to create a custom Telegram bot for my company. The bot will serve as a communication tool and a source of information. Ideal Skills & Experience: - Proficiency in Telegram Bot API - Experience with bot design, including user input and automated messagin...Documents and presentations - Training materials - Policies and procedures Your design should ensure the bot is user-friendly, reliable, and able to handle the company's internal resources efficiently. The Most important thing is the BOT must be PRIVATE and the only method to subscribe to BOT channel is by OTP sent to the registered e-mail in my company domain. The email list will be provided by excel sheet to you. The second MOST important thing is that the bot channel must be un...

I'm in need of a skilled and experienced scriptwriter who can help me create a captivating script . The intended audience for this script is adults, so it should be engaging, thrilling, and engaging for mature listeners. The successful freelancer should be able to demonstrate the following in their application: - Past work: I'll need to see examples of previous scripts you have written, particularly those in the crime genre. Ideal skills and experience for this project include: - Scriptwriting: You should be proficient in writing scripts that are engaging, with a strong grasp of storytelling techniques. - Crime genre: Experience in writing in the crime genre is a significant advantage. - Radio writing: Familiarity with writing for radio is preferred, but not esse...

You are asked to create an Excel file (FILE A) that: 1) Automatically extract data from another Excel file (FILE B) which is located in an FTP folder and which is updated every day. 2) The FILE A must extrapolate the data from the FILE B based on some filters that can be set or changed. For example, a filter could be the Brand or the Price. 3) The output (FILE C) of FILE A must be a .CSV file composed of 3 columns: SKU, Quantity and Price. 4) The final part is that this FILE C is saved inside another FTP folder. This entire 1+2+3+4 process must be done automatically every day at a certain time without the intervention of an operator.

As the manager of this project, I'm in need of an experienced PHP developer who is skilled in both front-end and back-end development to join our team. Responsibilities will include: - Front-end and back-end development - Efficient integrations with e-commerce platforms Below are the ideal skills and experience I'm looking for: - Proficiency in PHP - Proven experience with HTML/CSS and JavaScript - Ability to integrate with e-commerce platforms is a must Applicants with prior experience on e-commerce projects will have an advantage. If you are result-driven, have an eye for detail, and are adept in PHP and the aforementioned languages, don't hesitate to bid on this project.

I'm seeking an experienced PHP developer specialised in both front-end and back-end development. The main task is to build an e-commerce website from scratch. Proficiency in various PHP frameworks is required, coupled with a deep understanding of front-end technologies. Ideal Skills and Experience: - Extensive expertise in PHP Frameworks - Proficiency in front-end and back-end development - Proven experience in building e-commerce websites from the ground up.

...need to be converted to a SolidWorks or STEP file. This file will be crucial for the manufacturing of the product. Key Details: - End Goal: The main aim of this project is to obtain a manufacturing-ready model. It should be a precise and detailed 3D model suitable for industrial production. - Material Properties: It's essential for the selected freelancer to consider the material strength in the design. The integrity and durability of the final product depend on this factor. - Assembly Features: The design should include screw holes or threads. These features are necessary for the assembly process and should be clearly defined in the model. The ideal candidate for this job should have a good understanding of both AutoCAD and SolidWorks/STEP file conversions. ...

I'm looking for a skilled Excel expert to work on my financial data. The task involves clearing the data and conducting a thorough analysis specifically focused on profitability. Key responsibilities: - Clearing the provided financial data - Analyzing the data based on the profitability metrics Ideal skills and qualifications: - Proficiency in MS Excel, especially in data analysis - Strong understanding of financial metrics, particularly profitability - Attention to detail and ability to ensure data accuracy - Ability to present findings in a clear, concise manner - Previous experience working with financial data is a plus Please note that the data requires thorough analysis. Clarity and precision are crucial as the analysis will be used to make important business de...

I'm looking for a freelancer experienced in Laravel to help me integrate a payment gateway into my site. The script that must be installed is this: The site where the script must be installed is Key Requirements: - Expertise in Laravel: The freelancer must be able to navigate the Laravel framework with ease to integrate the payment script. - Custom Payment Gateway Integration Experience: The selected payment gateway isn't the usual PayPal, Stripe, or Authorize.Net. Therefore, the freelancer needs to demonstrate past experience with integrating custom payment gateways.