Basic Automatic Gmail Email Labelling with OpenAI and Gmail API

Description This workflow automates email categorization in Gmail using the Gmail API and OpenAI's language model. It periodically checks for new emails, reads their content, and categorizes them based on existing Gmail labels. If no matching label is found, the workflow creates a new label and assigns it to the email. Key Features Polling for Emails: The workflow triggers every 5 minutes to check for new emails using the Gmail Trigger node. Reading Labels: Existing Gmail labels are fetched to determine the most relevant match for email categorization. Dynamic Labeling: If no existing label matches, a new label is created dynamically based on the email's content. OpenAI Integration: The work

Help me set up the n8n workflow "Basic Automatic Gmail Email Labelling with OpenAI and Gmail API" (https://n8n.io/workflows/2740). It uses: AI Agent, OpenAI Chat Model, Simple Memory. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.