Short Dump when deleting CMR/DMR

Question

Hi,
When I delete a CMR or DMR the system hangs and I get a Short Dump.  I have traced the line where the dump is occuring, but cannot figure why the error/short dump occurs.
INCLUDE FV45KFKD_VBKD_FUELLEN_TEIL_2
FORM VBKD_FUELLEN_TEIL_2 USING VALUE(US_POSNR)
  IF NOT DA_WARNUNG IS INITIAL AND
     SVBKD-TABIX > 0.
    CLEAR DA_WARNUNG.
    IF VBKD-FKDAT EQ DA_FKDAT.
      SET CURSOR FIELD 'VBKD-FKDAT'.
      WRITE VBKD-FKDAT TO DA_DATUMC DD/MM/YYYY.
      MESSAGE W221 WITH DA_DATUMC.  <== The error is occuring when this statement is exceuted.
    ENDIF.
  ENDIF.
Although the short dump thing the error occurs when trying do the next ste PERFORM VBKD_FUELLEN_IAOM USING US_POSNR.
Thanks in advance
Naing

Answer 1

I would check if you have any code in userexit_check_vbkd for example.
NOTE: sapmv45a processes not only sales orders but contracts, CMR/DMR,... so please be careful with your code in userexits and make sure you restrict it to proper document types/transactions.
Ideally you need to write your userexits in such a way that they all can be switched-off easily (like put all code in each userexit between if sy-uname = 'SAPLOOK' ... endif. for example) in this case when you are logged on with SAPLOOK ID - userexits are off.
The bottom line is - if you are able to perform any action (delete DMR/CMR) when your exits are OFF -> the problem is somewhere in your exits.
The problem may NOT be in the code where dump occurs, it can be well in advance
One small flag or incorrect read statement which re-sets workarea of internal table in one of your userexits may cause problems down the line.