Hi Friend,
We have a PO, only this PO, VendorRef field was not disabled but can't type in anything. And there is no customized code related to this field/datasource.
Any other PO is fine. And it's not related to usage data since everyone open this PO has same problem.
I even tried, in back end, put some value in this field, but, it won't show up in Form.
Any suggestion?