Enable to upload the records into 0CUST_SALES...

I have successfully loaded data records 3837 into PSA but enable to upload the records into the target 0CUST_SALES.

1) When i try to activate DTP, i get warning message''Settings for error handling and error DTP doesn't match'' as you see in the screen short below!

What is this warning all about and how to resolve this issue?

2) 2ndly, when I hit the execute button, the system get kind of stuck and it don't get to the monitor for this particular request. Then i do manually

end this session from the task manager and go to the DTP and then to the monitor for this request and what i found '' Status: Processed with Errors'

What is error about and how to resolve it?

Regards

Arshiyan