UDCodeType - didn’t find my UD field under this.
UDMap - found something related to my UD field, as I set up a UD Column Mapping, but didn’t find my actual UD Field here.
Verticalization - no idea what this is, but nothing was there anyway.
XXXDef - ditto
ZBODef - had some class names, don’t think this is it.
ZDataSet - had fields including DataSetId, DataSetName, Description. don’t think this is it either.
had fields including DataTableID, DBTableName, and Description. Looked promising, but I couldn’t find my field (or any table I had added it to) in here.
Tried looking at a few others that also didn’t appear related.