Verified Meta Messaging App

@Microlent

Hello, I am Dr. Rajesh Rolen, PhD in Computer Science & Engineering, with experience of over 20+ years in Android, API, App Development, Mobile App Development, PHP, iPhone As a preferred freelancer in the top 1%, I have done 400+ projects here on freelancer.com, I have 4.9 ratings out of 5 on average, which showcases my quality of work and timely delivery. Key Highlights: - Free Hosting Support on the Cloud or any desired platform. - Free 3 months of post-delivery support to ensure that our client doesn’t face any challenges after the launch of the project. - Free Dedicated tester on projects to ensure quality delivery, so clients don’t need to act as a tester. - 10+ Years experience UI/UX team to ensure intuitive UI. Portfolio: https://www.freelancer.com/u/Microlent Please open the chat and send me a message, so we can have a more detailed discussion about the project to give you the project timeline and cost. Thank you for considering my services. I look forward to engaging in a productive conversation and understanding how I can be of assistance in bringing your project to life. Regards Rajesh Rolen

@gotucat

Hi, I reviewed your requirement to verify a single Meta messaging app for Instagram, Facebook, and WhatsApp, with full App Review approval for group messaging and OAuth authentication. I’ll prepare the Meta Developer portal configuration, implement and demonstrate OAuth for each channel, and revise the technical notes and screencast walk-through focused on Instagram, Facebook, and Whatsaat messaging permissions using the correct reviewer expectations. I’ll make code-level adjustments based on Meta feedback until Send, Receive, and group permissions are approved, keeping changes clean and easy to hand over. Let’s discuss here now.

@corpmember29

Hello, VERIFIED META MESSAGING APP DEVELOPER {{{ I HAVE CREATED SIMILAR BEFORE AND I CAN SHOW YOU }}} I have carefully reviewed your requirements and understand the existing prototype, Meta App Review, OAuth, and multi-channel messaging requirements. I have 10+ years of development experience and can work with the Instagram Graph API, Facebook Messenger Platform, and WhatsApp Cloud API. I can review and adapt your existing codebase, configure the Meta Developer App, implement and verify OAuth flows, prepare the required technical documentation and screencast, and address any code or permission issues raised during Meta’s review. I will also provide clear handover documentation covering the app configuration, review process, permissions, and future maintenance requirements. WE WILL WORK WITH AGILE METHODOLOGY AND I WILL PROVIDE ASSISTANCE FROM DEVELOPMENT THROUGH META APP REVIEW. I eagerly await your positive response. Thanks

@kanika6665

Hi, I’ve read your scope carefully, and I’m confident I can take your existing prototype through Meta App Review and get the configuration, OAuth flow, and messaging permissions aligned for Instagram, Facebook, and WhatsApp. With strong PHP experience and hands-on work around API integrations, I can handle the Meta Developer portal setup, refine reviewer-facing technical notes and screencast steps, and make the code-level updates needed for approval across the Facebook API and Instagram messaging flow. I’ll review your current codebase first, identify any App Review blockers, then prepare the submission, testing walkthrough, and permission justification so the app is ready for reviewer checks. Once access is shared, I can start immediately and deliver the verified setup, documentation, and handover guide within 10 days. Would you like me to first audit your current Instagram and Facebook API review blockers before we lock milestones? Thanks, KANIKA

@mahig47

Hello, Your prototype already exists, so the key challenge is getting the Meta app correctly configured, documented, and through App Review across Instagram, Facebook, and WhatsApp without losing the intended messaging workflow. I’ve worked with social/messaging API integrations and OAuth-based authentication, and I can take ownership of the technical preparation and review process across the Meta ecosystem. I can configure the Meta Developer app, review the required permissions and product settings, prepare the technical documentation and screencast walkthrough, and make the necessary code changes based on reviewer feedback. I’ll also verify the messaging flows across the Instagram Graph API, Facebook Messenger Platform, and WhatsApp Cloud API so the implementation is aligned with Meta’s current review expectations. Rather than treating App Review as a final submission step, I’ll review the complete permission-to-feature flow beforehand and ensure the requested permissions are clearly demonstrated in the app and supporting documentation. If you share the existing prototype and current Meta Developer configuration, I can assess what is already in place and identify the likely review requirements before submission. Regards, Nikita Gupta

@rbtech1984

Hello!! Your existing prototype will be prepared for Meta App Review, with Instagram, Facebook, and WhatsApp messaging permissions, OAuth flows, documentation, and reviewer requirements handled properly. • Is the current prototype already connected to all three Meta platforms? • Do you already have a Meta Developer account and business verification? • Can you provide the existing codebase and temporary access? The app configuration, API permissions, OAuth authentication, technical notes, screencast, and required code adjustments will be handled carefully. Relevant Meta API and messaging integration projects have been completed before, with strong attention to review requirements and reliable handover. Let us discuss the current prototype and review process in chat. Best regards Farhin B

@protovosolutions

Hello, We would be glad to support you with this project. Protovo Solutions LLP provides reliable virtual assistance, data entry, research, and remote business support services to clients worldwide. Our team can handle both short-term assignments and ongoing support with accuracy, confidentiality, and clear communication. Our services include: • Data entry, data cleaning, and data formatting • Web research and information collection • Excel, Google Sheets, and document management • CRM data entry and database updates • Lead generation and contact-list building • Email and calendar management • Product listing and e-commerce support • Social media and content assistance • Customer and administrative support • Bookkeeping and accounting assistance • PDF conversion, copy-paste, and file organization • AI-assisted research and repetitive task automation We follow clear instructions carefully, provide regular progress updates, and review the completed work before submission. Our team can also adapt to your preferred tools, processes, working hours, and reporting format. Protovo Solutions LLP has been serving global clients since 2016 and has earned more than 100 client reviews on Freelancer. Please connect with us through chat to discuss the work. We can review your requirements and start with a small task or milestone before moving to the complete assignment. Kind regards, Protovo Solutions LLP

@InterconnectBPO

I can help transform your prototype into a fully approved Meta messaging app that seamlessly integrates with Instagram, Facebook, and WhatsApp. My expertise in navigating the Meta App Review process will ensure we meet all requirements efficiently. I understand the importance of preparing the app configuration in the Meta Developer portal while also addressing any specific adjustments needed during the review. Familiarity with the Instagram Graph API, Facebook Messenger Platform, and WhatsApp Cloud API will be critical in achieving the permissions for sending, receiving, and group messaging. My background in developing and reviewing Meta applications, along with a strong command of OAuth implementations, positions me well to manage this project effectively. I am committed to delivering the app ID, documented review steps, and a guide for future updates.

@technologiesit

As an accomplished Full Stack Developer with over 8 years of experience, I'm well-versed in delivering robust digital solutions like what you need for your Meta messaging app. Having successfully completed over 200 projects just like yours, I understand the importance of meeting platform-specific requirements to ensure full approval throughout the review process. My familiarity with the Instagram Graph API, Facebook Messenger Platform, and WhatsApp Cloud API is a key asset for this endeavor. My skills extend beyond mobile app development and PHP. I've honed my craft in Laravel, React, WordPress, and Shopify – technologies that can greatly complement the scope of your project. Additionally, my proficiency in implementing OAuth flows and working with third-party integrations ensures I can navigate through the complexity that verification processes usually entail. Last but not least, I prioritize clear and open communication with my clients. As such, you can expect me to keep you informed about every milestone we hit and any adjustment or code-level request to ensure a successful rollout. Let's join forces in turning your prototype into a verified Meta messaging app that will empower users across Instagram, Facebook, and WhatsApp. Get in touch today and let's be on our way to creating something amazing together!

@pinkeegupta

Hi I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. Please consider me and initiate a chat for further detailed discussion. Regards, Anju

@denisSolution

Hello, I'm Denis, a developer with experience in Meta platform integrations and verified apps through App Review. The key challenge here isn't just coding—it's securing all three messaging permissions without delays, which requires precise OAuth flows and platform-specific technical notes. For a single app handling Instagram, Facebook, and WhatsApp messaging, the OAuth implementation must be consistent yet platform-aware. The Graph API for Instagram and Messenger will manage most message logic, while WhatsApp's Cloud API needs separate webhook registration and message formatting. The screencast should demonstrate end-to-end message sending in a group context, as reviewers prioritize this scenario. I'll begin by reviewing your current codebase and existing app configuration in the Meta Developer portal. The first milestone is finalizing the OAuth flow and required permissions for each platform, followed by testing messaging functionality before submission. If reviewers request changes—like stricter consent screens or additional logging—we'll address them directly. A common hurdle is WhatsApp Cloud API's stricter rate limits during review. Apps without graceful error handling in the screencast often face rejection, so we'll implement retries and clear error states early. I can start immediately. Let's connect to discuss the details. Thanks, Denis

@toriquldev123

Hello There! I’m Md Toriqul Islam, and I’m excited to partner with you. I can take your existing Meta prototype through the App Review process and handle the required technical implementation. I have rich experience in Meta Graph API, Instagram Graph API, Facebook Messenger Platform, WhatsApp Cloud API, OAuth, webhooks, permissions, and messaging integrations. I understand you need one Meta app configured and prepared for Instagram, Facebook, and WhatsApp, including messaging permissions, OAuth authentication, review documentation, screencast walkthroughs, and any code changes requested by Meta reviewers. I’m skilled in Meta Developer tools, Graph APIs, OAuth flows, webhooks, app configuration, and review preparation, making me confident I can deliver a properly documented submission. I’m ready to review your existing codebase, define milestones, prepare the submission, and coordinate closely through the review process. Looking forward to hearing from you. Best regards, Md Toriqul Islam

@shayankhan333

Meta App Review for messaging permissions is really a documentation game, the code rarely fails, the screencast and use-case notes do. I'll align your app config, rewrite the permission justifications for Instagram Graph, Messenger and WhatsApp Cloud, record a reviewer-friendly walkthrough of the OAuth flow on each channel, and patch any code the reviewer flags. Group messaging on Instagram is the strictest, it needs the exact user-initiated flow shown on camera. 1) Is the app currently in Development or already submitted and rejected? 2) Which Business Verification status is on the account? Cheers Shayan

@arslanshahid386

Hi, I see you need a Meta-platform developer to get your app approved for Instagram, Facebook, and WhatsApp. Does your current prototype already support OAuth for user authentication, or will this need to be implemented? Let me know how I can assist in configuring the app in the Meta Developer portal.

@briskbrain

Hello Client, I can help take your existing Meta messaging prototype through Meta App Review and prepare the required Instagram, Facebook, and WhatsApp integrations. I have experience with REST APIs, OAuth authentication, webhooks, WhatsApp Cloud API, Meta integrations, PHP/Laravel, and third-party API development. My approach will include: Review your existing prototype and identify missing Meta requirements. Configure the Meta Developer App and required products. Configure Instagram Graph API, Facebook Messenger, and WhatsApp Cloud API. Implement/verify OAuth authentication for each supported channel. Configure webhooks for receiving messages and status events. Review and implement the required messaging permissions. Prepare the technical descriptions and permission justification required for App Review. Create/update the required screencast demonstrating the actual functionality. Submit the app for Meta review and address reviewer feedback where code/configuration changes are required. Test the approved functionality after review. Provide a handover document covering App ID, configuration, review process, and future permission maintenance. I’m available to review your existing codebase and propose milestones once you provide temporary Meta Developer access and the current implementation. Regards, Manish

@mughiraaa

Hello, I have already completed similar Meta API and messaging integration projects involving Instagram, Facebook, and WhatsApp. I have strong experience in web development, APIs, and scalable software solutions. I can quickly review your existing prototype, prepare the Meta Developer configuration and review materials, handle OAuth, and make the required code changes based on Meta feedback. I can also help prepare the screencast and technical notes so the review clearly demonstrates the required messaging flows and permissions. Are the Send, Receive, and Group Messaging permissions already working in the prototype, or do any of them still need to be added? I’d be happy to review the current codebase and discuss the App Review process in a quick meeting. I will share my portfolio in chat I look forward to hear from you. Thanks Best Regards, Mughira

@hassans5

Hi, I’m Hassan, a Full-Stack/Mobile Developer with 4+ years of experience working with APIs, O Auth authentication, third-party integrations, and production applications. I can help take your existing prototype through the Meta App Review process, including Instagram Graph API, Facebook Messenger Platform, and Whats App Cloud API configuration, O Auth flows, required permissions, technical documentation, screen cast preparation, and any code changes requested by Meta reviewers. I’ll also provide a clear handover with the app configuration, review process, and guidance for future permission renewals or changes. I’m available to review your existing code base and start with milestone-based delivery. Best Regards, Hassan

@mayankinnovative

A single app clearing App Review across all three platforms is really three separate review processes running in parallel, not one, since Instagram, Messenger, and WhatsApp Cloud API each evaluate group messaging and OAuth scopes against different reviewer teams with different documentation expectations, and a screencast that satisfies one reviewer's read on "group messaging" often gets flagged by another for missing context. I'd start by auditing what your prototype currently does against each platform's specific permission requirements, since reviewers reject more often for unclear use-case justification than for code issues, the technical notes need to map each requested permission to a concrete user flow they can actually test in the walkthrough. For OAuth, I'd verify the redirect and token handling is platform-correct per channel first, Meta's login flow differs subtly between Instagram Graph API and WhatsApp Cloud API even though both sit under the same developer app, and reviewers do check this during the live test. Group messaging tends to be the sticking point across all three, so I'd prepare that flow with clear before/after states in the walkthrough rather than relying on a live demo alone. Once submitted, I'd stay on to handle any code-level changes reviewers request rather than treating submission as a one-shot attempt. Has this app been through App Review before, or would this be the first submission attempt?

@invoketech

Hi, we’ve reviewed the scope and can help take your existing Meta messaging prototype through the App Review process, with the focus on Instagram Graph API, Facebook Messenger and WhatsApp Cloud API. We can audit the current implementation, configure the Meta Developer App, verify OAuth flows, prepare the required permission justifications and screencast, and address reviewer feedback through the approval cycle. Working Flow: Code/API Audit → Meta App Configuration → OAuth & Messaging Validation → Review Documentation/Screencast → App Review Submission → Reviewer Fixes → Final Handover We’ll keep the implementation compliant with Meta’s current platform requirements and clearly document the approved permissions, app configuration and renewal/maintenance process. Final approval will naturally depend on Meta’s review decision and the eligibility of the requested permissions. Thanks, Invoke Tech