SAP Knowledge Base Article - Public

3011944 - Reservation created despite no available stock

Symptom

You have activated the creation of automatic reservations via the APP "Settings for Creation of Reservation" as described in the attached BLOG. As described in the pre-requisites the creation of the reservation is dependent on stock availabilty. Yet, despite your material having no available stock the system is still generating a reservation when you create a Purchase Requisition via the SSP APP 'Create Purchase Requisitions'.

Environment

SAP S/4HANA Cloud All versions

Reproducing the Issue

1) Set an entry for a material group and purchasing group combination in the APP 'Settings for Creation of Reservation'.
2) Open the APP 'Create Purchase Requisitions'.
3) Create a Purchase Requisition with a real account assignment for the given material, material group and purchasing group.
4) Save the Purchase Requisition. 
5) Open the APP 'My Purchase Requisitions' and search for your new Purchase Requisition. 
6) Confirm the status is ‘Follow on Document Created’ and the automatic reservation is visible.

Cause

Standard System Behaviour, the material is defined for 'No availibilty check' in the Material Master.

Resolution

The real availibilty check is executed only for Materials that are relevant for availabilty check. 
This can be seen in the APP 'Display Material' (MM03) in the MRP3 TAB

The APP Monitor Product Availability (CO09) shows the true availability of a material. 
In APP 'Monitor Product Availability (CO09)',  when a material is set with 'no availability check' you will receive the following message: 
No display: Material not relevant to check, therefore always available (Message no. AG772)

See Also

Process description BLOG

Keywords

CL_MMPUR_SSP_RESERVATION, CHECK_STOCK_AVAILABLE, EV_RESRV_ALLOWED, LV_CHECK_RULE, LS_WMDVEX-COM_QTY, ESTKZ, MARC-MTVFP, EBAN-RSNUM , KBA , MM-FIO-PUR-REQ-SSP , Fiori UI for Self Service Procurement , MM-IM-RS , Reservations , How To

Product

SAP S/4HANA Cloud all versions