Provide assistance to Sir Mike de Villa on his inquiry regarding the following issues.
a. How to transfer sales from 9847 to 9839. - instructed to reverse the sales of 9847 then upload the poll file to 9839
b. Check inventory of both stores - Query INVBAL table
c. How to disable store location 9847 - Instructed to tag in the store maintenance the field Data interchange to 'N' and input date on the Closed store column