Error:- APP-SQLAP-10771: Could not reserve record. Solution :- Step (1) Run the query given below- : SELECT vlo . object_id , vlo . session_id , substr( dbo . object_name , 1 , 40 ) OBJECT_NAME FROM v$locked_object vlo , dba_objects dbo WHERE vlo . object_id = dbo . object_id AND dbo . object_name like 'AP_%' ORDER BY dbo . object_name ; Output look likes-: OBJECT_ID SESSION_ID OBJECT_NAME 41097 495 AP_INVOICES_ALL Step (2) Now again Run the Query given below-: SELECT l . * , ao . owner object_owner , ao . object_name FROM SYS . all_objects ao , v$lock l WHERE l .TYPE = 'TM' AND ao . object_id = l . id1 AND ao . object_name in ( 'AP_ALLOCATION_RULES' , 'AP_ALLOCATION_RULE_LINES' , 'AP_INVOICES_ALL' , 'AP_INVOICE_DISTRIBUTIONS_ALL' , 'AP_INVOICE_LINES_ALL' ); Output:- ADDR KADDR SID TYPE ID1 ID2 LMODE 00000003BDC546F0 00000003BDC54748 495 AE 352852 0 4 REQU...