# Card account updater

> AI agents: search and read all Moov docs with the docs MCP server at https://docs.moov.io/mcp (no API key). Setup: https://docs.moov.io/guides/developer-tools/mcp-ai/docs-mcp/index.md

## Card account updater

With Moov’s card account updater, you can set up cards to automatically receive updates. Sensitive card information is securely sent to Moov and updated on your behalf, eliminating the need for you to contact cardholders for card updates.

See our [documentation](/guides/sources/cards/card-account-updater/index.md) for more information.

## ACH returns in test mode

You now have the ability to simulate various ACH return scenarios in test mode. You can initiate test returns occurring at different transfer stages to gain better insight into cashflow management.

See our [documentation](/guides/get-started/api-authentication/test-mode/index.md#ach-returns) for more information.

