# Page Not Found

The URL `api-clients/access-control-systems/credentials/update-a-credential` does not exist.

You might be looking for one of these pages:
- [Managing Credentials](https://docs.seam.co/latest/capability-guides/access-systems/managing-credentials.md)
- [Assigning Credentials to ACS Users](https://docs.seam.co/latest/capability-guides/access-systems/managing-credentials/assigning-credentials-to-users.md)
- [Updating Guest Mobile Credentials](https://docs.seam.co/latest/device-and-system-integration-guides/assa-abloy-visionline-access-control-system/configuring-visionline-mobile-credentials/updating-guest-mobile-credentials.md)
- [Update a Credential](https://docs.seam.co/latest/api/acs/credentials/update.md)
- [Encode a Credential](https://docs.seam.co/latest/api/acs/encoders/encode_credential.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://docs.seam.co/latest/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://docs.seam.co/latest/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/latest/capability-guides/access-systems/managing-credentials.md`)
- Use `Accept: text/markdown` header for content negotiation