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I already have a pre-approved promotional template and a list of phone numbers sitting in Google Sheets. What I need is a clean Google Apps Script (or small set of scripts) that connects to WhatsApp Cloud API, authenticates with my Meta token, and fires that single template message to every number in the sheet. Scope of work • Authorise the script with WhatsApp Cloud API, store the access token securely, and handle refresh logic. • Build a simple menu item or button inside the Sheet so I can trigger the send on demand. • Read numbers from a designated column, batch the calls to respect WhatsApp rate limits, and log success / failure back into the sheet in real time. • Provide clear setup instructions so I can reuse or copy the script to other sheets later. Acceptance criteria • Running the script delivers the exact promotional template (no personalisation) to every valid number in the sheet. • Status column updates with “Sent”, “Failed” plus error code when relevant. • No quota or authentication errors during a 500-number test run. If you’ve wired Apps Script to external REST APIs before, this should feel straightforward. Include any previous examples of Cloud API or similar integrations in your reply so I can gauge fit.
Project ID: 40363463
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Active 6 days ago
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28 freelancers are bidding on average ₹1,758 INR for this job

Over my extensive 13+ years of experience, I have dedicated myself to developing diverse web applications, APIs, and backend services by creatively wiring apps to external REST APIs like the WhatsApp Cloud API. Not only can I craft a Google Apps Script or set of scripts that authorizes with this API and handles refresh logic securely, but I can also offer an efficient menu item or button inside your Google Sheet for easy on-demand triggering. My forte lies in reading data from designated Google Sheet columns and incorporating batch calls to adhere to WhatsApp rate limits for smooth real-time updates back into the sheet. One area where I particularly excel is offering detailed setup instructions. These instructions will allow you to replicate or migrate the script effortlessly across other sheets and make modifications as per your convenience. Moreover, my skills extend beyond API integration work; I'm capable of helping you troubleshoot any quota or authentication errors that may occur during a 500-number test run ensuring optimum functionality at all times. Thanking You Chandan Kandar
₹1,050 INR in 7 days
6.7
6.7

I can build this Google Apps Script integration for you quickly to turn your Google Sheet into a reliable WhatsApp broadcast tool. I’m an individual developer who handles the full implementation—from secure API authentication to the batching logic—so you’ll be working directly with the person writing every line of code. I’ve previously built bulk WhatsApp messaging systems and integrated Apps Script with various REST APIs, so I’m well-versed in handling Meta’s Cloud API requirements. My approach will involve a script that uses UrlFetchApp to communicate with the WhatsApp Cloud API, utilizing a secure script property for your Access Token to keep it out of the raw code. I'll build a custom menu directly in your Google Sheet UI so you can trigger the broadcast with one click. To ensure reliability for your 500-number runs, I’ll implement batching and error handling that logs "Sent" or the specific error code back to your sheet in real-time. Since I prioritize DevOps and ease of use, I’ll provide the code as a clean, modular script with a setup guide so you can replicate it across other sheets in minutes. I’m ready to start on the API wrapper today and can have the first test messages firing from your sheet within 24 hours. Let's get your campaign moving.
₹9,999 INR in 2 days
4.6
4.6

As a seasoned full-stack developer with more than 8 years of experience, I'm confident that my skill set aligns perfectly with the requirements of your project. My portfolio delves deep into backend service development and mobile app intergration which makes me uniquely capable in this project. My proficiency in JavaScript and PHP allows me to easily navigate API integrations like the WhatsApp Cloud API, which shouldn't pose any problem during the course of your project. Moreover, I'm a thorough professional when it comes to handling data, ensuring maximum security and confidentiality which would be especially crucial for securely storing access token as well as the numbers from Google Sheets. Just as you needed, I can develop a clear menu item or button inside the sheet that would facilitate on demand delivery of your template message along with real-time logging for better analysis. In conclusion, my expertise in not only integrating external REST APIs but also optimizing databases which is critical for a large-scale service like WhatsApp makes me the best choice for this project. Let's connect so we can discuss your requirements further and get started immediately. Your Bulk Sender awaits!
₹1,050 INR in 7 days
4.0
4.0

Hi There, I can help you set up a Google Apps Script flow that authenticates with the WhatsApp Cloud API, safely stores tokens, and sends your pre-approved template to each number in Google Sheets, without personalisation, while logging results in real time and respecting rate limits. I’ve built REST API integrations with Google Sheets, OAuth flows, and batch processing for messaging APIs, including examples with Apps Script and external REST endpoints. I can deliver a clean, reusable script bundle plus clear setup steps for reuse in other sheets. What I’ll deliver: a compact Apps Script suite with a secure token store, a sheet menu to trigger sends, batched calls to the WhatsApp API, and live success/failure logging in the sheet, plus straightforward setup instructions so you can reuse it later. Could you share the current Google Sheets column name containing the phone numbers and confirm how you’d like tokens stored (PropertiesService vs. a dedicated sheet) to ensure secure, scalable authentication? Best regards, Daniel
₹1,165 INR in 4 days
2.7
2.7

I already see a clean way to execute this. I specialize in WhatsApp Cloud API messaging and automation, including bulk sends using pre-approved templates and Google Sheets lists. I’ve set up similar campaigns where everything runs reliably, messages are trackable, and the process is easy to repeat for future promotions. You want to take your existing approved promotional template and your list of numbers in Google Sheets, and turn that into a smooth bulk-sending system that actually delivers messages at scale without getting stuck in manual work or risking compliance issues. My focus would be on connecting your Google Sheet to the WhatsApp Cloud API, handling throttling/limits safely, and giving you a simple way to trigger and monitor campaigns going forward. Quick question before I suggest the best setup: do you prefer this as a one-time bulk send, or a reusable tool you can run future campaigns from? Lets chat more about your project, worst case you walk away with a free strategy session Regards
₹1,050 INR in 7 days
1.8
1.8

# Proposal: WhatsApp Cloud API Bulk Sender Hi there! I specialize in **WhatsApp Cloud API integrations and bulk automation solutions**—I've built similar systems for marketing campaigns, notifications, and customer outreach. ## What I'll Deliver ✓ **WhatsApp Cloud API integration** with your pre-approved promotional template ✓ **Google Sheets API connector** to read phone numbers directly from your sheet ✓ **Intelligent bulk sender** with rate limiting to comply with WhatsApp's delivery requirements ✓ **Error handling & retry logic** for failed sends (invalid numbers, rate limits) ✓ **Simple dashboard or CLI** to trigger campaigns and monitor delivery status ## Why Choose Me - **Proven expertise**: Built 10+ WhatsApp/Telegram bot solutions and API automation systems - **Fast execution**: Straightforward integration approach = 5-7 day delivery - **Your budget**: I can deliver a clean, functional MVP within $600 by using serverless architecture (no unnecessary infrastructure) - **Compliance-ready**: Built-in handling for WhatsApp's rate limits and template approval workflows ## Timeline & Deliverables **Week 1:** - WhatsApp API setup validation - Sheets integration + bulk sender logic - Testing with sample data **Week 2:** Deployment, documentation, handoff ## Next Steps Let's clarify two quick details: 1. Expected volume (messages/day)? 2. Do you need a basic web interface, or is a script fine? Ready to get started immediately. —Petrovich
₹600 INR in 7 days
1.8
1.8

Hi, I can build a clean and reliable Google Apps Script that connects your Google Sheet with the WhatsApp Cloud API to send your approved template message at scale. I have experience integrating Apps Script with external REST APIs, including authentication handling, batching, and real-time logging. I will implement secure token handling, a custom menu/button to trigger sending, batch processing to respect rate limits, and live status updates (“Sent” / “Failed” with error codes) directly in your sheet. The script will be well-structured, reusable, and delivered with clear setup documentation for future use. I can ensure smooth execution for your 500-number test without quota or auth issues. Available to start immediately and deliver quickly.
₹1,050 INR in 1 day
1.6
1.6

Hello, I am a Full Stack App & Web Developer with 4+ years of experience in building scalable solutions. I have expertise in PHP, JavaScript, HTML, and integrating external APIs. I am confident in developing a Google Apps Script to connect to the WhatsApp Cloud API, authenticate with your Meta token, and send the promotional template message to the phone numbers in the Google Sheet. I will ensure secure storage of access tokens, real-time logging of success/failure statuses, and provide clear setup instructions for future use. You can review my previous work in the portfolio section. I have successfully integrated external APIs in previous projects, making me well-suited for this task. I am excited to discuss further details and turn your project idea into a high-quality digital solution. Best regards,
₹1,100 INR in 7 days
0.8
0.8

Hello, As an expert in automating processes with Google Apps Scripts, I am confident I can help you realize your vision. Having connected Google Apps Scripts to external APIs numerous times before, I am familiar with the task at hand. One project that stands out is when I integrated Instagram DMs with ManyChat using Google Sheets API. Although it's not exactly WhatsApp Cloud API related, the principle remains the same and it showcases my ability to work with RESTful APIs and implement that functionality into Google Sheets. Additionally, my proficiency in ManyChat automation and lead management systems like GoHighLevel and HubSpot aligns perfectly with what you're looking for - a clean and efficient system that handles large quantities of data while remaining organized. My proactive approach places great emphasis on strategizing for long-term scalability, which means the script we build together won't just solve your current challenge but will be easily replicable for future projects. To summarize, my track record of fast, accurate delivery, proactive value addition, and experience in creating scalable systems make me the perfect fit for this project. Let’s connect your Google Sheets data with WhatsApp's powerful Cloud API and create a reliable messaging system that can handle high volumes without compromising compliance or efficiency. Taking into account your acceptance criteria, I'm confident that we can complete a successful 500- Thanks!
₹600 INR in 3 days
0.0
0.0

Hello, As an experienced automation expert, my skills in Google Sheets and integrations align perfectly with your project. I have had the pleasure of building sophisticated ManyChat and CRM automations for a wide range of businesses, including eCommerce firms, agencies, and finance companies; all of which can benefit from reliable, streamlined functionalities across various platforms. Likewise, your project involves the precise delivery of a promotional message via carefully authenticated channels. I will ensure your WhatsApp Cloud API syncs seamlessly with your Google Sheet using Apps Script. This'll authenticate your meta token and simplify the process of sending templated messages to batches of numbers without breaching WhatsApp's rate limits. You need not worry about confusing status logs as this script will update each number's status with "Sent" or "Failed" if relevant. My biggest selling point is my commitment to giving each project the attention it deserves. With me working on your script, you are assured a well-documented solution that allows for scalability, easy replication, and integration with other systems. I provide solutions not just for now but for future use too. Let's collaborate to make sure every lead is captured and nurtured while you focus on the important part - closing deals. Thanks!
₹600 INR in 3 days
0.0
0.0

Hello, As an experienced data scientist and full-stack developer, I have a profound understanding of the Google Apps Script and REST API integration, which perfectly aligns with your project's requirements. My adeptness in authentication and access token management will ensure the secure connection of your script with the WhatsApp Cloud API. Additionally, my extensive experience in handling large-scale data through APIs will aid in implementing necessary rate limits to adhere to WhatsApp guidelines. To illustrate my proficiency, I've successfully integrated various external APIs like MongoDB, MySQL, Postgresql, Stripe, Firebase, among others into different projects. Moreover, working on complex applications over the years has sharpened my skills in delivering not only a functional solution but also one that is user-friendly. Therefore, aside from implementing the core functionalities of connecting and sending messages from a Google Sheet column using WhatsApp Cloud API as you've specified, I'll provide clear setup instructions for future usage or duplication across other sheets. Lastly, allow my previous clients' satisfaction and $5+ million USD revenue generation for over 70 international firms serve as the testament of my capabilities to deliver groundbreaking results. Let's propel your project beyond limits and ensure its smooth expansion even further! Thanks!
₹9,309 INR in 2 days
0.0
0.0

꧁⎝ ?༺ Hello ༻? ⎠꧂ As a seasoned full-stack developer, I am more than capable of meeting your WhatsApp Cloud API integration needs to facilitate your bulk messaging project. My extensive experience with API integrations, specifically in JavaScript and Google Apps Script as mentioned in the project description, makes me an ideal fit for the job. Throughout my career, I have successfully developed numerous applications relying on external REST APIs, much like your WhatsApp API requirement. That said, building a clean script that fully authorizes with the Cloud API to send messages using a pre-approved template and stored phone numbers would certainly not come as a challenge for me. Moreover, establishing continuous communication throughout the process is of utmost importance to me, and you can be assured I will keep you updated with real-time logging of success/failure as well as error codes. While making sure that the technicality is intact, I equally lay emphasis on the end-user experience. In line with this philosophy, I believe in providing clear setup instructions along with other deliverables. So, once the job is done you'll not only have a seamlessly functioning system but also have full control over it if needed for future use or reference. All in all, hiring me guarantees receiving a stable and scalable system without any quota or authentication hiccups. Reach out to me so we can further discuss how we can turn your idea into an impeccable reality! Thanks!
₹4,654 INR in 6 days
0.0
0.0

Hello, As an experienced AI-powered full-stack developer, my ability to integrate external REST APIs (such as the WhatsApp Cloud API) and my proficiency in JavaScript make me a prime candidate for your project. I am skilled in building scalable systems that effectively handle rate limits, like the one you require for batched API calls. I’m adept at working with cloud platforms and optimizing API-first architectures, ensuring that your promotional messages are efficiently delivered to each number while maintaining compliance with WhatsApp's rate limits. I understand the importance of minimizing manual tasks while maximizing efficiency for businesses, and your project is a reflection of that exact need. My track record in creating automation workflows ensures that I can streamline this process for you using Google Apps Script - allowing for easy triggers and real-time logging. Additionally, my expertise in secure authentication and API systems guarantees we can store and handle the access token securely while maintaining its refresh logic; thus, eliminating any authentication errors. Finally, my commitment to long-term thinking is demonstrated by providing comprehensive setup instructions to ensure you can easily replicate or reuse the script on other sheets consequently maximizing its value. By hiring me, you will not just have a script writer but a partner who not only understands the technicalities of your task but also aligns wit Thanks!
₹600 INR in 2 days
0.0
0.0

With experience in software development, automation tools, and API integrations like Google Sheets, I am confident that I am the right fit for this project. My team and I have previously worked on similar projects involving the authentication and use of external REST APIs to establish seamless connections with cloud-based systems. Our combined skills in API Integration, JavaScript and PHP can help you create a clean and efficient Google Apps Script to integrate your WhatsApp Bulk Sender requirement. I understand the need for a reliable, scalable, and well-documented system; this is our forte. Upon completion of the project, you will have a functioning Google Apps Script that not only successfully send pre-approved promotional templates to your list of numbers but also tracks success or failure in real-time by updating the designated column. Not to mention our script will account for WhatsApp rate limits to provide smooth handling of the batched calls, while keeping your access token secure. Our commitment doesn't just start and end with project delivery - we aim to build long-term relationships with our clients by providing them comprehensive solutions. Choosing my team means getting a systematic approach from idea validation and development till after deployment support; where we'll be ready to answer any queries or offer necessary guidance as you replicate or scale this script to other sheets later. Let us bring your vision of an optimized bulk messaging system to life!
₹1,050 INR in 2 days
0.0
0.0

Hi, there, I am excited about the opportunity to assist you with your WhatsApp Cloud API Bulk Sender project. It sounds like a great initiative to leverage WhatsApp for your promotional needs. ✅ Backend Scope I will develop a clean Google Apps Script that authenticates with the WhatsApp Cloud API using your Meta token, ensuring secure storage of the access token and implementing refresh logic as needed. My experience with API integrations will ensure that the script runs smoothly without any authentication or quota errors. ✅ Frontend Scope To enhance usability, I will create a simple menu item or button within your Google Sheet that will trigger the sending process on demand. This will make it easy for you to initiate the bulk sending without technical intervention. ✅ Deliverables The script will read phone numbers from a designated column, batch API calls to comply with WhatsApp's rate limits, and log the success or failure of each message in real time. I will also provide detailed setup instructions for future use or adaptation. With extensive experience in integrating Google Apps Script with external REST APIs, I am confident in delivering a robust solution tailored to your needs. I can start immediately and am keen to help you achieve your goals efficiently. I am looking forward to working with you. Best Regards, Susie Kalson.
₹1,050 INR in 2 days
0.0
0.0

I saw your project and am confident I can deliver on this. I'm currently working on a similar project and understand the importance of securely connecting to the WhatsApp Cloud API, handling rate limits, and providing real-time feedback. By integrating the script with a menu item in Google Sheets, I can ensure a seamless process for sending bulk messages. Rest assured, I will meet the acceptance criteria by delivering the exact promotional template to all valid numbers, updating the status column accordingly, and ensuring a smooth test run without errors. I invite you to view my portfolio, which showcases the quality and results of my past work. I look forward to hearing from you. Regards, Sadiya
₹1,050 INR in 7 days
0.0
0.0

With over four years of experience in full-stack software development and API integration, I am confident that I can deliver on this project's requirements. I have had hands-on experience with cloud APIs and similar integrations. For instance, I have used GCP and Google Cloud Storage for cloud development, just like the WhatsApp Cloud API we'll be working with here. More importantly, I affirm my ability to ensure real-time batch messaging in adherence to WhatsApp's rate limits, and the fact that I can log any status updates (e.g., "Sent," "Failed") directly into the sheet during runtime. Moreover, my proficiency in Frontend & Web technologies such as JavaScript gives me an added advantage when it comes to building clean Google Apps Script as you require for this project. My history of incorporating APIs with impeccable precision and minimal disruption fits well with your project's vision of speed, correctness, and minimal disruption. Lastly, I will provide clear setup instructions for future use/copying of the script in other sheets. This is a testament to my commitment to not just completion but also sustainability. You don't need just a service today, but one that sets you up for a better initial project management tomorrow.
₹1,050 INR in 7 days
0.0
0.0

Hi, This is a straightforward and well-defined task, and I can implement it cleanly using Google Apps Script with WhatsApp Cloud API. My Approach: - Build a Google Apps Script directly inside your Google Sheet - Securely store your Meta access token using PropertiesService - Create a custom menu/button in the Sheet to trigger message sending - Read phone numbers from the specified column - Send the pre-approved WhatsApp template using WhatsApp Cloud API - Implement batching and delays to safely handle rate limits (suitable for 500+ messages) - Log real-time status in the sheet: - “Sent” for success - “Failed” with error codes for debugging Key Features: - Clean and reusable script (can be copied to other sheets) - No third-party tools required - Safe and API-compliant implementation - Clear setup instructions included I have experience working with API integrations and automation workflows, so this will be implemented efficiently and reliably. Let me know if you'd like me to include a sample structure before we proceed. Thanks
₹1,050 INR in 7 days
0.0
0.0

Hi there, Handling authentication, batching, and real-time logging with Google Apps Script requires precise token management to avoid quota hits or failures. In a recent project, integrating Google Sheets with a RESTful SMS API, I implemented token refresh and rate-limiting that successfully sent 1,000+ messages without errors. Your requirement for a simple trigger within Sheets aligns well with this approach. I will write a clean script that securely stores and refreshes your Meta token using PropertiesService, create a custom menu for on-demand sending, and process numbers in batches respecting WhatsApp rate limits to prevent throttling. The script will update the sheet immediately with “Sent” or “Failed” and relevant error codes. Expect delivery within three business days. How do you prefer handling edge cases like invalid numbers or temporary API outages in your logging? Drop me a message and we can talk through the scope - no commitment needed. Best, Atish.M
₹1,150 INR in 30 days
0.0
0.0

I can build a clean and reliable Google Apps Script that connects your Google Sheet to the WhatsApp Cloud API and sends your pre-approved template message to all listed numbers. The script will securely handle your Meta access token, include a custom menu/button inside the sheet to trigger sending, and process numbers in controlled batches to respect WhatsApp rate limits. I’ll also implement real-time logging in the sheet with clear “Sent” / “Failed” statuses along with error codes for easy tracking. I have experience integrating Apps Script with external REST APIs (authentication, batching, and logging), so this workflow will be efficient and reusable. I’ll also provide clear setup instructions so you can duplicate and use the script in other sheets without issues. The solution will be tested to ensure smooth execution for bulk sends (500+ numbers) without quota or auth errors.
₹1,300 INR in 7 days
0.0
0.0

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