Beta

This endpoint is in beta and may not be available for all organizations.

Replaces the supplied subject or HTML body of one email stage in a not-started sourcing sequence. At least one of subject or body is required. The reusable sequence template is not changed.

Subject is plain text. body uses the rich-text input shape { type: "text/html", value: "<p>...</p>" }. The HTML value may preserve, move, repeat, or remove the Ashby token markers returned by sequence.info or sequence.add. Token identity and final send-time values remain controlled by Ashby; unknown or malformed token markers return invalid_input.

Drafts are editable only by the acting user who created them, so requests made with x-on-behalf-of must continue using the same user. Returns sequence_not_found for an inaccessible sequence.

Requires the sourcingWrite permission.