Purchasing in PS

[Former Member]

Hello experts,

I know that there are two possibilities to create PR/PO from project. One is using the external activity or material assigned to network activity. The other is using MM tcodes me21n / me51n with assignment to PS.

Can you clarify what are the differences when using both methods?

Cheers, Aleksandra

[Former Member]

Hi,

when the material is assigned to internal activity hence the material planned cost is calculated for the project and can be seen in the project. For external activity the same is done through material infor record.

In direct me21N purchase order case,at the time of GR the cost is posted to WBS element i.e. to project.Here wbs element act as a Cost collector and only used for budget check. if you observe in certain cases in RM is procured the MAP of that Material is not changed since cost is booked against WBS

Regards,

Sameer Wad

[virendra_pal]

if done from WBS then the P req/PO has to be manually created

if done from network Preq/ PO can be automated - the demand is created from the network and can be seen even when Preq is not created in plan view