PR with purchasing unit from MRP

[former_member677038]

Hi expert,

Did you know if there is a way to express purchase requisitions (NB) from MRP with the purchasing unit of the material and not the base unit ?

PROCESS :

1. we execute the MRP run, the PR are generated and automatically affected to vendors (with source list and purchase info record).

2. the PR is express in base unit ..

3. When you convert it in purchase order you got the purchasing order in the post (that's good)

Purchase requisitions are grouped into orders according to the capacity of a truckload.

That's why we need the information of PR in purchasing unit after the MRP run.

We test some solution but no way.. variant planification, profil Manage unit in source list, rounded profile

We check this note :
- 1956456 - Order unit not assigned from fixed source
we don't use Outline Agreement
- from OSS Note 445239 - ME56/ME57-Source Overview displays numerous OUn
but not really the same case on Fiori

according to the notes and let's salt the forums it's not something impossible but the subject is never clearly addressed

thank you in advance for your help if someone know

Configuration : S/4 HANA o/p with Fiori release 1809

[RaymondGiuseppi · Accepted solution]

Read answer of question 10 in note 493315 - FAQ: Purchase requisition (general) or note 1795967 - If the requisition is generated via MRP the Order unit is not copied from the source list.

Usually UOM is changed when conversion to production order (production unit of measure) is executed.

[former_member677038]

Thank you for your answer Raymond.

On the 1795967 - If the requisition is generated via MRP the Order unit is not copied from the source list, It's clearly adressed : "It is standard system design to take the base unit of measure as order unit. Order unit will not be taken from the source list for requisition created from MRP."

My question is whether there is a specific way at the moment where the purchase requisition is created and the supplier is assigned automatically to have the purchase unit in the purchase requisition.

[RaymondGiuseppi]

Ask an abaper to look at BAdI MD_PURREQ_CHANGE or ME_PROCESS_REQ_CUST, check if any of those BAdIs are executed during MRP, you could change UOM in CHANGE_BEFORE_SAVE_MRP or PROCESS_ITEM method.