Skip to main content
The Add Label action applies an existing Gmail label to a message. Use it to categorize processed mail, route inbox work, or mark a workflow stage.

​
Inputs

Label names are matched after trimming whitespace and ignoring capitalization. Supplying an exact Gmail label ID also works.
This action has no output. A successful run means Gmail accepted the label update.

​
Example

Use Search Messages to find the relevant mail, repeat over its Message IDs, and apply the Processed label to each message with Add Label.

​
Troubleshooting

The action does not create labels. Create the label in Gmail first, then use its visible name or exact ID.