Credit Management--Scheduling agreement update in F.28

Folks,
Here is one scenario I encountered which turned into an enhancement.
Features of F.28:
Whenever you update a credit master for a customer in FD32 (Ex: updating a customer with risk category field), the next step would be to run F.28 to update the credit master in all the billing documents and SD documents (sales orders etc). Further the credit master changes(in our example risk category) will be carried to subsequent documents.
My issue with F.28:
I am working in a manufacturing industry(automotive to be precise). In my scenario, I have scheduling agreements (SD document) which are not getting updating even after executing F.28.
What is a Scheduling agreement and what happens if credit master is not update in SA?
Scheduling agreement is a long term purchase agreement, where you will keep issuing the delivery schedules whenever there is a change in requirement or at predetermined time intervals. The delivery schedule can be on hour/daily/weekly/monthly basis.
If we update the credit master, this update must get populated in Scheduling agreements as well along with billing and other SD related documents. If the data does not get updated, then Company may be having serious business effects (like shipping as per schedule to bankrupt customers and so on)
RESOLUTION:
I searched several SAP notes and Forums to resolve this issue. Finally I found a SAP note 1080446 and as mentioned in the note, I came to know that there is an exception for scheduling agreements. I worked with the developer and modified the functional module and create another Z transaction to update the credit master in scheduling agreements.

Please let me know if you have any questions.