As a Brex Admin, you can change the bank account that you would like to make payments to Brex to at anytime by following these steps:
Step 1: Click on the Account tab on the bottom left corner of the Brex dashboard
Step 2: Under Auto-Pay Accounts click on Manage Auto-Pay Accounts
Here, you will be provided with a list of connected funding sources to choose from, including your Brex Cash account.
Please note that the next payment you make after updating your primary funding source will take 3-5 business days to become available as spending room. A penny pull will also be automatically initiated in order to verify your new funding source.