Redaction allows you to permanently remove attachments from an existing comment on a ticket. Once removed from a comment, the attachment is replaced with an empty "redacted.txt" file. The redaction is permanent. It is not possible to undo redaction or see what was removed. Once a ticket is closed, redacting its attachments is no longer possible. Also, if you want to redact an inline attachment, you can use the `include_inline_images` parameter in the [List Comments](/api-reference/ticketing/tickets/ticket_comments/#list-comments) operation to obtain the inline attachment ID, and use it in the request URL. #### Allowed For * Admins * Agents when [deleting tickets is enabled for agents on professional accounts](https://support.zendesk.com/hc/en-us/articles/360002128107) * Agents assigned to a custom role with permissions to redact ticket content (Enterprise only)