Diagnosis
When checking the queue for data transfer to APO at least one entrywith errors was found. This means that some of the data could notsuccessfully be sent to APO.

System Response
The integration model cannot be set to active.

Procedure
Check the queues in the qRFC monitor (SMQ1 if you are using outboundqueues and SMQ2 in the target system if you are using inbound queues),then remove the cause of the error. Restart the action.