Grant Semantic Model Access Ensure that the OAX$OAC user can access each of the database objects that you plan to merge. Grant access to the OAX$OAC user to each object using this SQL: GRANT SELECT ON "X_FAW_MERGE_POC"."MY_TABLE" TO "OAX$OAC"; COMMIT; If you plan to merge views that reference multiple schemas, use the WITH GRANT OPTION as follows: GRANT SELECT ON "X_FAW_MERGE_POC"."MY_VIEW" TO "OAX$OAC" WITH GRANT OPTION; COMMIT; Optional: Grant view access to OAX_USER using this SQL: GRANT SELECT ON "X_FAW_MERGE_POC"."MY_TABLE" TO "OAX_USER"; COMMIT;