# Credit memos timeline Use credit memo timelines to maintain an audit trail of changes and activity for each credit memo. Credit memos are a means of providing a customer with store credit. ## Retrieve credit memo timeline messages - [GET /credit-memos/{id}/timeline](https://www.rebilly.com/docs/dev-docs/api/credit-memos-timeline/getcreditmemotimelinecollection.md): Retrieves a list of credit memo timeline messages. ## Create a credit memo timeline message - [POST /credit-memos/{id}/timeline](https://www.rebilly.com/docs/dev-docs/api/credit-memos-timeline/postcreditmemotimeline.md): Creates a credit memo timeline message. ## Retrieve a credit memo timeline message - [GET /credit-memos/{id}/timeline/{messageId}](https://www.rebilly.com/docs/dev-docs/api/credit-memos-timeline/getcreditmemotimeline.md): Retrieves a credit memo timeline message with a specified ID. ## Delete a credit memo timeline message - [DELETE /credit-memos/{id}/timeline/{messageId}](https://www.rebilly.com/docs/dev-docs/api/credit-memos-timeline/deletecreditmemotimeline.md): Deletes a credit memo timeline message with a specified ID.