How to automatically add a label to an email in Gmail every time a card is added in Trello

Relay.app is an automation tool that lets you automate actions across Gmail, Trello, and many other apps. In this guide, we'll show you how to automatically run the “add label to email” action in Gmail for each card added in Trello using Relay.app.
Trello logoTrello > Gmail
Trigger
Last triggered
Trello logoCard added
Gmail logoAdd label to email
1

Set the Trello trigger as “New card added”

A playbook always starts with a trigger, which is responsible for detecting changes in your connected applications and responding accordingly.

Add the Trello trigger to initiate your playbook's actions every time a card is added. Click "Add trigger" in your playbook and choose "New card added" from the dropdown menu under Trello.

If you still need to connect your Trello account to Relay.app yet, a prompt will guide you through the process.

2

Add the “Add label to email” step in Gmail

Integrate the Gmail automation into your playbook to ensure the prompt addition of a label to an email in Gmail every time a card is added in Trello.

Click the "Add step" button, locate the “Add label to email” automation for Gmail, and input the mandatory and relevant details.

If your Gmail account still needs to be connected to Relay.app, you will be prompted to complete that connection. Make sure to allow the necessary permissions for Relay.app to sync with your Gmail account.

3

Activate your playbook

Activating your playbook is the last step in the process. Once you turn it on, it will automatically add a label to an email in Gmail every time a card is added in Trello without requiring manual intervention.

To activate your playbook, click the toggle button at the header. Before activating, we recommend performing a test run of your playbook to ensure all the steps work seamlessly together.

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