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I will fix whatsapp multi device sync and media loading
Micheal
About this gig
Is your WhatsApp business system having sync problems?
I fix delete sync, media loading, chat history, CORS errors, token expiration, and multi device failures. I have fixed over 50 WhatsApp systems for foreign trade companies.
Common problems I solve:
- Delete message not syncing to computer
- Images and videos not loading
- PDF files showing expired
- Chat history missing or incomplete
- Multi device connection failures
- Contract generation broken
- Dashboard blocked by CORS
Why does this happen? When WhatsApp updates its protocol, sync actions break and media URLs expire. Your custom system stops working. I fix the root cause, not the symptom.
My process is simple. You share server access or source code. I diagnose the exact problem. I fix the code without breaking other features. I test and deploy when you approve.
I understand the WhatsApp protocol deeply, especially appstate sync actions and media handling. I do not guess. I find the root cause and fix it permanently.
Guarantee: If I cannot fix your problem, you do not pay.
Contact me now and let me fix your WhatsApp system today.
Get to know Micheal
Micheal
Api integration
- FromUnited Kingdom
- Member sinceApr 2026
- Avg. response time1 hour
Languages
English
I am an API integration specialist focused on fixing real-world issues like webhook errors, REST API bugs, and third party API connections.
I help businesses resolve Stripe API errors, PayPal API issues, Shopify API bugs, and Zapier API automation problems quickly and efficiently.
Whether you need API authentication fix, JSON API debugging, or webhook integration, I deliver clean, working solutions.
I focus on fast response, clear communication, and reliable API solutions.
Other Software Development Services I Offer
FAQ
What is the most common WhatsApp sync problem?
Delete message not syncing to computer is the most common. This happens when the appstate mutation version is outdated. I fix this by updating the sync action version and index format.
Why are my images and videos not loading?
WhatsApp media URLs expire after a short time. Your system needs to re download or refresh these URLs. I add a retry mechanism and remove the 7 day limit so all media loads properly.
Can you fix my CORS error?
Yes. CORS errors happen when your dashboard and API are on different domains. I configure Nginx and backend headers to allow proper cross origin requests.
Do you work with the WhatsApp Business API or unofficial API?
I work with both. Most of my clients use the unofficial whatsmeow library because it gives more control. I fix issues in both official and unofficial setups.
Will my existing data be safe?
Yes. I always backup before making any changes. I work on a copy of your code first. I never touch your production system without your permission.
How long does a fix take?
Most fixes take 24 to 48 hours. Complex systems with multiple broken features take 3 to 5 days.
Do you need server access?
Yes, I need SSH access to your server or a copy of your source code. I also need a test WhatsApp account to verify the fix.
What is your refund policy?
If I cannot fix your problem, you get a full refund. No questions asked.
Can you add new features to my WhatsApp system?
Yes. I can add contract generation, agent panels, one click account imitation, contact management, and more. Each new feature is quoted separately.
Do you offer ongoing maintenance?
es. I offer monthly maintenance packages starting at $200 per month. This includes monitoring, updates, and priority support.
