Immediate processing was not possible

What causes this issue?

The IDocs are supposed to be transferred immediately to the application.
This is not possible. There are no resources available to start the
application in a separate process.
Based on your configuration, a job should be scheduled.
In '&v1&', the message '&v2&' is displayed, with the parameters '&v3&'
and '&v4&'.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Use the report RBDAPP01 to start IDoc posting.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.