Skip to Content
0
Dec 23, 2022 at 08:43 AM

ERP: ATP check in STO between storage locations

50 Views

HI Experts
i need an advice for solving next issue with ATP check for stock transport order between storage locations.
there is different behavior and results of ATP with creation STO (me21n) and changing (me22n)

When availability check is running with creation of STO - availability is checked at plant level. what cause a wrong result of available quantity.
When availability check is running with changing of the same STO order - then checks is on issue storage location and result is correct.

For example:
location A - is available 10 pc of material
there is requirement for 5 pc (a sales order)
location B - 0 pc are available of material
there is requirement for 4 pc (sales order)
I need to create STO to move material from location A (issue stor.loc) to location B (recieving stor.loc) that to cover requirement on it. So create STO for 4 pc
In me21n i'm see only 1 pc available. system takes to consider both sales orders, although second one is on another location. Then STO is saved. After in me22n i run ATP again - and the result of check is correct - system checks only issue storage location (i played with quantity, and created STO with different quantity - 2 pc, 6 pc , etc. And system gives me few schedule lines - 5 pc available + second according to receiving date of open PO from supplier)

how can i solve this issue, that to have the same behavior with creation of STO?

MRP is running on plant level. POs from suppliers are received only on storage location A. SLoc MRP indicator in material master couldn't be assigned as 2, becasue MRP still has to run at Plant level.
Thank you in advance.