Diagnosis
An error has been encountered during the conversion of fields defined
through a User Exit of the Conversion program.

System Response
The system will halt further conversion of the IT0224 record for this
employee.

Procedure
User Exit conversion fields are defined individually in each customer
system. Consult the author of the User Exit for more information on
the special fields being converted in your system. Once the error has
been identified and corrected, execute the Conversion program for the
employee in question to create the required Tax Framework Infotypes.