1990122 - CIF transfer of orders fail with Order type X Order number xxxxxxx Method with errormessage /SAPAPO/OM_ERROR215

The activation of CIF integration model for planned / production orders has excessively long runtime, the same for sales order or purchase orders.
When we check CIF queues in APO inbound , you will see queues with status RETRY and in this queue you have an error log entry.

Order type X Order number xxxxxxx Method
A table entry already exists with this secondary key

If you check then long text to this message you will see.

ECC and SCM system using the core interface

/SAPAPO/OM_ERROR215 , Return code 215 , CIFORDMAP , CIFPOMAP , CIFSLSMAP , ORDMAP , READY, secondary key, Sekundärschlüssel , KBA , SCM-APO-INT-PPS , PP-DS / Production and Process Order , SCM-APO-INT-SLS , Sales , SCM-APO-INT-PUR , Purchasing / Purch. Req. and Order, Transfer Order , SCM-APO-INT-IMO , Integration Model , SCM-APO-INT-MOR , Maintenance Order , SCM-APO-INT-POR , Project Order , Problem