Transaction code MB02 - Issue with Printing and Process overload SM50

Question

Hello Experts,
We are actually having a problem when trying to print a smartform in tcode MB02. Also, when verifying transaction SM50 for that process then we noticed that there was a timeout after a big data load.
Here is the scenario:
1. Entering a material doc 9999 and Press enter
2.Select and double click a line item for that material doc
3. Click on Messages
3. Select an output type and click on Repeat output
4. Click Save
5. Click Save again.
In a normal case, a screen would appear for printing but this time nothing seems to happen. And then when we go to tcode SM50 and check that process there is 2-3 dumps.
As a newbie programmer I do not understand any of these procedures properly. If anyone can shed any light on this, i would be grateful.
Regards,
Thyaga

Answer 1

Hi everybody,
Thanks for your answers.  Actually after a lot of time spent on debugger i found that the variable returncode is 999 and then a subroutine is called which in turn calls my program to trigger the smartform. 
The problem is throughout my program i do not change the value of the returncode .i.e it remains 999.  What i did then is change the returncode 999 before my smartform-program is called then after testing i see that the output is printed without any error.
The program and subroutine i am talking are as follows:
1. Program: RSNAST00
2. Subroutine: programm_aufrufen
3. Line 1297 returncode is 999
4. Line 1318 - my smartform program is called
5. Then at 1324 - on control is done on returncode.
Please advice if these steps are conform/ethical.  Also, can you suggest any other steps i can do without the need to modify my own program.
Thank you very much for your replies.
Kind regards,
Thyaga.