Source Determination in Purchase Requisitions
SAP Materials Management
Automatic Source Determination for Materials in Purchase Requisition is one of the functions used for optimizing the purchasing process. This article explains the various scenarios used for source determination in PR's.
Source Determination for Materials in Purchase Requisition
Source Determination for Services in Purchase Requisition
Automatic Source determination for services using MSS
Requirements for Automatic generation of PO from PR using ME59 , ME59N
Source Determination for Materials in Purchase requisition
For materials source determination is based on following criteria and source of supply tab is populated with the source automatically if Source determination indicator is set . (How to set Source determination Indicator automatically)
1. Quota arrangement
2. Source List
3. Outline Agreement
4. Info record.
Source Determination for Services in Purchase Requisition
Note the following for services.
1. For services Quota , Source list or info record cannot be maintained in the standard system and these functionalities are specific to materials.
2. Automatic source determination will work only for contracts with the following settings.
ML98 (SPRO --> MM --> External Service Management --> Source Determination Default value
3. Automatic Source determination will not work if only conditions are maintained. When conditions for condition type PRS is maintained , price will be populated automatically based on the pricing access sequence. (There is no pricing schema for materials in PR) but user has to click assign source of supply in the Source of Supply tab in the PR for assigning fixed vendors for services without contracts.
183762 - MM-SRV: No autom. source determination for services
Source determination for services will work only for contracts if the same is allowed in configuration : ML98
Automatic Source determination for services using MSS
If source determination is required for services without contract then the alternate is to create a Model service specification in which vendor can be defaulted.
Note : MSS can be used only with Tcode : ME51 and not ME51N
Requirements for Automatic generation of PO from PR using ME59 , ME59N
- No unique source of supply is assigned to the purchase requisition.
- In the vendor master (purchasing data), the 'Automatic purchase order' indicator is set.
- In Customizing, indicator 'Automatic PO generation for service requisitions' is not set for the client of the purchasing organization. (Customizing path: Materials Management -> External Services Management -> Source Determination and Default Values)
- The purchase requisition is subject to a release strategy and is not released.
- In the purchase requisition, indicator 'Closed' is set or the item is deleted.
- The purchase requisition is already converted into a purchase order.