# Troubleshooting

Choose a focused recovery guide for common integration and runtime failures.

<!-- docs-source -->
Source: https://learning.monetizekit.app/docs/troubleshooting
<!-- /docs-source -->

Diagnose common integration and runtime problems.

### Error Codes

Reference for common API failures and remediation steps.

[Open guide](/docs/troubleshooting/error-codes)

### Auth and Permission Issues

Diagnose invalid keys, scope mismatches, and token lifecycle issues.

[Open guide](/docs/troubleshooting/auth-issues)

### Webhook Delivery Issues

Fix signature mismatches, timeout failures, and endpoint availability problems.

[Open guide](/docs/troubleshooting/webhook-issues)

### Metering and Usage Anomalies

Identify duplicate events, missing events, and threshold misconfiguration.

[Open guide](/docs/troubleshooting/metering-issues)