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  • Resolving Message Sending Failures

Resolving Message Sending Failures

< 1 min read

If your messages are marked as “Failed” or are stuck in “Pending,” check these two common issues immediately:

  1. Missing Country Code (Most Common):

    • SyncMate requires phone numbers with the country code included (e.g., 15551234567 for US, 919876543210 for India).

    • Do not use 0 at the start.

    • Fix: Check your contact list or API payload and ensure the country code is attached to the number.

  2. WhatsApp Disconnected:

    • Since SyncMate works by linking to your WhatsApp, your WhatsApp must have an active connection with SyncMate for messages to go out.

  3. Session Expired:

    • Sometimes the linked session expires for security reasons. Go to the your Assistro account > Configuration > scan the QR code again to refresh your WhatsApp connection.

Updated on February 17, 2026

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