Hi Sweetie,
S_ALR_87012186 or even S_ALR_87012186 are a little bit confusing when in comes to verify via FBL5N.
I've already gone through this before and come up with the following:
Customer sales reports consider all transactions with posting keys 01,02,11 & 12 regardless document type.
So, Go to FBL5N, filter by PKs 01,02,11 &12
Thanks,
Ibrahim