My client want to create realease strategy based on plant for PO

Hi all,

1.My clients want to create realease strategy based on plant for PO. Kinldy let me know the the possibilites and steps.If it is not possible let me know the reason so that I can explain to the client

2.how can I take print of credit note and MIRO kindly let me know T,code.

hope to hear back from you all....

Thanks&Regards,

chand