Thanks for your reply David,
Actually i am new to SRM development and my requirement is straight forward that, Change the SRM Source of Supply (SoS) logic. as mentioned below.
a. 1) First level SoS determination – if a supplier number is present, then use Plant, Part, Supplier to determine the SoS. Results should return only one contract/contract line. If more than one contract/line is returned then kick the requisition to the Sourcing Cockpit (SoCo). If no contract/contract line is returned then use second level SoS determination.
2) Second level SoS determination (present SoS determination) – uses Plant and Part to determine the SoS. Results should return only one contract/line. If more than one contract/line is returned, then kick the requisition to the SoCo. If no contract/line is returned, then kick the requisition to the SoCo. If only one contract/line is returned, then use the supplier/contract/line as the SoS.
Note: Here i am working on system SRM 5.0 version.