WhatsApp Business API Troubleshooting: Common Problems and Fixes

WhatsApp Business API Troubleshooting: Common Problems and Fixes

Things sometimes go wrong on the WhatsApp Business API: a message fails, a template is rejected, a number gets flagged. This troubleshooting hub links to clear, practical fixes for the most common problems.

Troubleshooting guides

WhatsApp Business API error codes

Full list of common error codes with fixes.

Why your template got rejected

Common rejection reasons and how to fix them.

Number banned or flagged: recovery

Why it happens and how to appeal and recover.

How to avoid a WhatsApp ban

Best practices to keep your number healthy.

Messaging limits and tiers

250 to unlimited, and how to increase yours.

Quality rating recovery

Green, yellow, red and how to recover.

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Related reading:

1 - How to Get the WhatsApp Business API

2 - WhatsApp Business API Glossary

3 - WhatsApp Business API Pricing 2026