https://developers-dot-devsite-v2-prod.appspot.com/apps-script/reference/card-service/update-draft-body-action?hl=de
Class UpdateDraftBodyAction | Apps Script | Google for Developers
Informationen zur Verwendung der Apps Script-Klasse UpdateDraftBodyAction Aktualisiert den Text des E-Mail-Entwurfs.
apps scriptclassgoogledevelopers