Data Transformation Engine Type Tree Importers Reference Guide
Appendix A – Return Codes and Error Messages  COBOL Copybook 
Type Tree Importers Reference Guide 
58 
Return Code  Message 
20  Reopen file failed 
A map did not run correctly. Contact Mercator Technical Support. 
21  Input valid but unknown data found 
The input specified is likely not a valid copybook. Check to make 
sure a proper copybook input file was specified. 
22  Page size too small 
Contact Mercator Technical Support. 
28  Input type contains errors 
Invalid copybook statement(s) were found in the specified input. 
The COBOL Copybook Importer error report file should contain 
details on the problem statement(s). 
50  Type exists and is not overwritten 
A duplicate definition was found in the .mts file. The COBOL 
Copybook Importer uses the first definition found for a given field 
or group name and ignores or warns about any duplicate names. 










