For the New Airwallex WebApp Experience (Beta phase):

If you see "Business Accounts" in the left navigation column, you're on the new Airwallex experience.  If you don't see this then please refer to steps outlined under "For the existing Airwallex Webapp Experience"

Step 1: Access Bill Settings by 

1. Select "Spend" on the left navigation bar > Bills > Settings icon next to the "New Bill" button or 
2. Select "Settings" on the left navigation bar > Spend > Bill and Vendors

Step 2: Scroll all the way to the bottom to locate "Product activation" section 

Step 3: Change Airwallex Bills from Enable to Disable and save the settings

For the existing Airwallex Webapp Experience:

If you don't see "Business Accounts" in the left navigation column, you're on the old Airwallex experience. You will be migrated to the new WebApp experience soon as we gradually roll it out. 

To deactivate Bills on your account, navigate to the Bills Settings page. At the bottom of the page, you will see the option to turn off Bills. If you choose to deactivate, Bills will be hidden from your account for all admins and employees.

Note: After you deactivate Bills on your account, your accounting software connection, if previously connected, will continue to stay active and your settings will be maintained in case you’d like to reactivate Bills at a later point. During this time however, no user in the account will be able to access Bills to edit, submit, approve, or pay bills. To disconnect your accounting software connection, you can do so separately in Connections.