The MRP ignore order reservations those reserved against planned separately storage location

[cspspd]

Hi SAP Experts,

we have many stock items that are held into 2 different storage locations, 4040 is the main storage location and 5040 is the Sub storage locations, here is an example of an items that held at both storage location and it's MRP sitting is as per attached photo 448002156.jpg, our problem that the MRP ignore all the order reservations those reserved against the Sub storage location (5040) as per attached photo of the MRP mrp-of-448002156.jpg, as you can see the system created purchase requisition for 6 EA only at storage location 5040 which is the replenishment quantity for that item, and ignores the 30 EA those reserved against 5040

please advise

[JL23]

There is no such term as Sub-Storage location. Both storage locations are equal from its level in SAP.

Last time I saw such material master view was probably with R/3 3.1i release, I usually see 4 MRP screens, and the storage location specific MRP indicator is on MRP 4 screen and only accessible if the storage location was entered in the organization data.

Please read OSS note 51576 - MD01: MRP type V1/V2: reorder point w. requirements

It gives you an calculation example and explanation why V1 works different from what user usually expect.