This blog describes about the requirement to run the process chains on specific days of the week. For example, if you want to run finance process chain only for 6 days of the week and would not like to run finance process chain on saturday of the week, you should be able to achieve this by following this blog.
Step by Step Procedure:
Step 1) Creating a new Factory Calendar to run only on Monday, Tuesday, Wednesday, Thursday, Friday and not on Saturday.
Step 2) Go to SCAL transaction in R/3 system and click the Factory calendar radio button and click on change.
Step 3) Click on Create Icon and then name the new Factory calendar
Step 4) Go to BW system and Source system and right click on the source system and transfer global settings

Step 5) Follow the next step
Step 6) You will get the new factory calendar into BW system and you can see that in the process chain Start scheduling section.
Step 7) In the Start process type, click on Change Selections
Step

Click on Restrictions on the above screen shot to select the new factory calendar
Step 9) From the above screen select the required calendar id for the existing calendar ids