Solution : https://service.sap.com/sap/support/notes/128399 (SAP Service marketplace login required)
Key words : 
table parameter structure optional------------------------------------------------------------------------ ekubi                          ekub                               xekubd                          ekub                               xyou, selected- p_dbupd -> ' ' test run             'x', material requirements planning ekub, delete unnecessary ekub records, performance problems occur, function module me_update_goods_receipt, stock transport orders, purchase order item, delivery date earlier, index ekub
Related Notes : 
       
| 369732 | MD04 Missng stck transport schedlng agrmnts in issuing plant | 
| 192423 | Delivery Processing Performance: Consulting | 
| 130136 | Reduction index EBUB f.stock transport requisitions |