If your Xero organization selector shows it's Already connected,
follow the steps below to fully disconnect Brex from Xero. Please also read How do I connect my Brex account to the correct Xero Organization?.
Step 1: Open a new browser tab and go to your Xero dashboard.
Step 2: At the top left, click Settings
under your Xero organization.
Step 3: Click Connected Apps.
Step 4: Find the Brex app and click the three dots on the right to select Disconnect.