You can use the error handling function to process error situations of a message in the framework of message flow control.

The error handling function performs the error actions that are specified for a message. Most error actions are pre-defined by SAP. You can change the assignment of error actions to individual messages and restore the SAP standard settings any time.

You can also define your own error actions as ABAP function modules. You can assign error actions to BDoc types, services and sender sites.