Solution : https://service.sap.com/sap/support/notes/509803 (SAP Service marketplace login required)
Key words :
experiencing long runtimes, purchasing info records, mysap e-procurement, full table scan, table eina refer, table eina, material group, terms me_search_source_of_supply, shopping basket, source determination
Related Notes :
| 394242 | Runtime problems w/ supply source determtn w/ material class |