Payment callback missing — Debug Tool

Infrastructure entry for diagnosing missing payment callbacks in Telegram-related flows.

What this covers

• Callback endpoint reachability
• Signature / secret mismatch patterns
• Provider -> webhook -> bot pipeline breaks

Checklist

1. Confirm callback URL is reachable from the public internet.
2. Confirm the provider webhook is enabled and pointing to the right URL.
3. Confirm your handler returns 2xx quickly.
4. Confirm you persist raw callback payloads for debugging.

Verdict

• Scope of Responsibility)
• Archived decision page: Payment callback missing)