> ## Documentation Index > Fetch the complete documentation index at: https://docs.cassidyai.com/llms.txt > Use this file to discover all available pages before exploring further. # Add labels to Gmail message > Add labels to a Gmail message as part of a Workflow. Use the **Add Labels to Gmail Message** action to apply labels to a Gmail message from within a [Workflow](/workflows/overview). This helps you automatically organize and categorize incoming emails. ## Set up the action While editing a Workflow, click the **+** button between existing blocks. Select **Add Labels to Gmail Message** from the action list. Selecting the Add Labels to Gmail Message action Click the action name to give it a more descriptive label for easier reference. Renaming the Add Labels to Gmail Message action If you haven't already, connect your Gmail account to Cassidy. Adding a Gmail connection for the action If you're using this action with the **New Email Received in Gmail** trigger, enable **Add Labels to Trigger Email** to automatically apply labels to the email that started the Workflow. Add Labels to Trigger Email toggle Enter an email ID manually, use a variable from previous steps (such as the message ID from a trigger), or click the list icon to search and select an email from the trigger. If **Add Labels to Trigger Email** is enabled, this field can be left empty. Email field with variable reference Searching for an email to label Search for and select existing Gmail labels, or click the pencil icon to manually enter label names. You can add multiple labels to organize your emails effectively. Searching for Gmail labels to add Selected Gmail labels ## Related Trigger a Workflow when a new email is received. Send an email from a Workflow.