If you are getting an error from your integration when trying to add or update a client in Mindbody that looks like this:
Error reported while executing "Action #1 (MINDBODY - Add or update client)": Required action field [Mobile_Phone] is empty, this action cannot be executed.
You need to turn off Required fields in Business Mode in MBO here:
Manager Tools | Settings | Required Fields
Please notify Apiant support after you have made the changes to your settings. We will need to refresh your integration or you can refresh fields in the action yourself like this: