I am working on customizing the customer layout, adding fields that don't exist so I can import my data. I ran in to a few fields that
claim to already exist, but are not found in the field list nor
available to add to a layout. My prime example is AccountNumber in the
Customer table. Does it exist somewhere I can use or is the purpose of
the field to be a back-end internal ID that I can't use and I need to
make a new field with a unique name, i.e. AccountNum? I get the error that it exists when trying to save the new field and when I customize the customer layout, it is not available as a field to add nor does it appear on the layout already.