Number Range for PO based on company code and document type

Question

Dear All,
I've a requirement to assign a separate purchase order Number Range for a company code for the following document types.
ZNB         Standard PO   
ZRB         Return PO
ZUB         Stock transport ord. 
ZLPA       Scheduling agreement 
ZLU         Transp. sched. agmt.
(Number Ranges are different for each of the doc types mentioned above)
Is it something like I've to create 5 different Number Range objects and then provide the condition in the corresponding user exit , so that the appropriate document could pick its corresponding Number range.
Does anyone have any specific advice / experience on this , I am new to SAP and please advise me as how to go about this requirement. Thanks !!
Srinivas G.

Answer 1

Create the five different number ranges via configuration the configuration for PO.  Usually a user exit is not needed.  You've really posted in the wrong forum.
There is a lot of work involved in creating a different PO types.  It is usually done in materials management.
If everything is done:
In spro go to materials management -> purchase order -> define number ranges.
Once they are defined they should work automatically or be entered manually depending on how your number range is set up.
Edited by: Michelle Crapo on Aug 3, 2009 3:07 PM