Dear Experts ,
I have defined a serial number profile which i intend to use for a returnable packaging material :
1. During GR thro PO
2. During Inventory postings within stores.
3. During sending the same to a customer .
4. During receiving it back from the customer.
For this i need to have an external number assignment only, which can be known only at he time of GR thro PO.
Pls tell me where do I define the number range for this material & the check that it can have ONLY external numbers .
Thanks & regards