Process Chain Maintenance...

Dear All,

I've designed a "Process Chain" few months ago and its executing perfectly as it has been scheduled for daily execution @ 6:30: 00 a.m. Now, I have a need to modify it with the addition of two DTPs, one loads the delta data from DataSource to a new DSO and other loads the delta data from New DSO to a new InfoCube. I do not want to create new Process Chain for uploading to new DSO and InfoCube. I would like to use this existing "Process Chain". See below screen shot:

1. What is the above "Unknown Job" all about, when I click the check icon it disappear, but again it comes back? How to get rid of it?

2. How am I add new Delta DTP by "Mouse Right Click" and then use Connect to property and select the new Delta DTP?

3. After the addition of two Delta DTPs, do I need to only activate this Process Chain and no need to "schedule" it again?

4. What are the precautions to be taken care of while modifying an existing "Process Chain"?

I will appreciate your reply a lot.

Many Thanks!

Tariq Ashraf