Hi
there are two reason why you parallel work process are reduced to two .
1. generally Client copy runs in background and it schedule the job of Class C while running the same if any other background job with higher class needs to be run SAP will deallocate your work process and give it to other Work process
2. solution to this is as followes
- try to schedule the same in night
- in night operation mode increase the value of background process and reduce the dialogue work process if it suits your project requirement.
- have adequate space in table spaces
3. and there is no need to lock Source client .
all the best
Regards
Dishant pathak