Solution : https://service.sap.com/sap/support/notes/736285 (SAP Service marketplace login required)
Key words :
system issues error message cn814, attached correction instructions, function module ibapi_alm_order_post, table parameter it_orders, flag 'optional' = 'x', error message, program error, redundant message, additional relationship, maintain relationships
Related Notes :
735696 | Notes for Downgrade Kit ALMBAPI: Relevance |
633987 | Relationships maintenance prevented w/ incorrect msg. CN814 |
539597 | ALM order BAPIs: Error when maintaining relationship |
537755 | BAPI_ALM_ORDER_MAINTAIN: Relationship changes not saved |