""""""Generally in OVB8-- 101 Requirement and 1 Routine controls , once customer crossed his credit limit automatically Confirm qnty become zeo and and once we release that document in VKM3 Again confirmed qnty will be active mode for the customer .... this is sap Function once we removed 101 routine it wont work like this"""""
The routine which you are suggesting is prerequisite to update MRP.
(please dont mix this with credit management--that is a different concept all together)
Fixed date & Qty:
this indicator you can check at transaction level or at configuration level(by default for your sales area)
The purpose of this indicator is How to confirm or assure your customer(there by he can assure to his consumer)
Once you activated this indicator means at transaction level/(or Default for your sales area):
At customer level:
You are assuring your customer that you will give the required Goods on this specific date.(here the customer priority is not the Question)
At Business level:
After activation of this flag,your MRP will be updated and in case if you are rescheduling all your sales orders--this order will be skipped from others--so MRP department need to plan/Procure/Produce these goods on the specific date mentioned.
As far as i know these two are completely different in their respective Properties.
Needless to mention here--whether you are confirming or not ,still you can update MRP by using delivery Blocks concept.
Phanikumar