**Requirements:** being the owner or having permission to share the sheet (section 2). 1. Open your sheet in **Google Sheets** (or find the folder that contains it in Google Drive). 2. Click the **Share** button. 3. Enter the **service account email** Platform shows you in the first step of the connect modal (section 4) — it has the format `…@proyecto.iam.gserviceaccount.com`. 4. Choose the access level: **Viewer** if you only want the agent to look up the sheet, or **Editor** if you also want to allow a flow to write to it ("Append row"/"Update row" actions, section 5). 5. Click **Send** or **Share** to confirm. Verified against Google's official documentation (`support.google.com/docs/answer/2494822`, checked on September 5, 2026).