GL > Setup > Flexfields > Key > Rules
Show Error Message:
APP-FND-01016: Routine FDFRKS: Unknown structure ID 52550 for flexfield code GL# with application ID 101
APP-FND-00730: This flexfield has an invalid value set. It may use a special value set that uses an Edit event
user exit, and the user exit has failed. If you are using a form on a graphical user interface (GUI) you may have
an invalid value set of a different type, possibly a table-validated value set where the table or view does not
exist or where there is an invalid WHERE clause.
Contact your system administrator or support representative to check and correct the value sets this flexfield
uses.