What is wrong in this code?

This code, has to set the status of the document as 'AD' , then change some data save it and again set the status to RE. WHen i run this in debug mode , it actually updates everything , but when i dont go in the debug mode , it just updates the first status set to 'AD' and then doesnt do anything ...any insights why ?

CALL FUNCTION 'BAPI_DOCUMENT_SETSTATUS'

EXPORTING

DOCUMENTTYPE = 'SWD'

DOCUMENTNUMBER = ITAB-DOKNR

DOCUMENTPART = ITAB-DOKAR

DOCUMENTVERSION = ITAB-DOKVR

• STATUSEXTERN = ' '

STATUSINTERN = 'AD'

• STATUSLOG = ' '

IMPORTING

RETURN = RETURN

.

*

• CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'

• EXPORTING

• WAIT =

• IMPORTING

• RETURN =

.

IF SY-SUBRC = 0.

COMMIT WORK.

BAPI_DATA-AUTHORITYGROUP = 'VIEW'.

BAPI_DATA_X-AUTHORITYGROUP = 'X'.

CALL FUNCTION 'BAPI_DOCUMENT_CHANGE2'

EXPORTING

DOCUMENTTYPE = 'SWD'

DOCUMENTNUMBER = itab-doknr

DOCUMENTPART = itab-dokar

DOCUMENTVERSION = itab-dokvr

DOCUMENTDATA = BAPI_DATA

DOCUMENTDATAX = BAPI_DATA_X

• HOSTNAME =

• DOCBOMCHANGENUMBER =

• DOCBOMVALIDFROM =

• DOCBOMREVISIONLEVEL =

• SENDCOMPLETEBOM = ' '

• PF_FTP_DEST = ' '

• PF_HTTP_DEST = ' '

• CAD_MODE = ' '

IMPORTING

RETURN = RETURN.

• TABLES

• CHARACTERISTICVALUES =

• CLASSALLOCATIONS =

• DOCUMENTDESCRIPTIONS =

• OBJECTLINKS =

• DOCUMENTSTRUCTURE =

• DOCUMENTFILES =

• LONGTEXTS =

• COMPONENTS =

.

IF SY-SUBRC = 0.

COMMIT WORK.

ELSE.

ROLLBACK WORK.

ENDIF.

CALL FUNCTION 'BAPI_DOCUMENT_SETSTATUS'

EXPORTING

DOCUMENTTYPE = 'SWD'

DOCUMENTNUMBER = ITAB-DOKNR

DOCUMENTPART = ITAB-DOKAR

DOCUMENTVERSION = ITAB-DOKVR

• STATUSEXTERN = ' '

STATUSINTERN = 'RE'

• STATUSLOG = ' '

IMPORTING

RETURN = RETURN

.

if sy-subrc = 0 .

commit work.

else.

rollback work.

endif.

ELSE.

ROLLBACK WORK.

ENDIF.

ENDLOOP.