IDOC clearing error

Dear All,

There are 2 userids we use for clearing the idocs.

Using first ID 'ABC' when we process the idoc in BD87 ,it gets processed successfully but when i use other id'XYZ' to process the IDOC in BD 87 it fails to proces the IDOC.

I tried to use authorization trace on ID "XYZ' but there was no authorization failure.

Please help in finding out the problem area.

Best Regards

Sandeep.