Solution : https://service.sap.com/sap/support/notes/517889 (SAP Service marketplace login required)
Key words :
executing exec sql', transactional simulation reason, source code correction, 'sql error -28530 occurred, 'sql error -600 occurred, product allocation groups, error messages, product-allocated, order item, update hangs
Related Notes :
| 540593 | Short dump when updating with DBIF_DSQL2_SQL_ERROR in APO |
| 512175 | Product allocations: SQL error -28530 when you execute EXEC |
| 434474 | Allocations: SQL error 600 during execution of EXEC SQL |
| 417835 | APO customer req. timeout runtime error locking problem |