outbound idoc error message

Dear all,

When i am manually create a direct request for POS outbound, the system shows the error message as below. It cannot generate an outbound idoc. Do anyone know how to detect this error and how to solve this problem?

Error message:

Processing Status

Recipient: XX01

IDocs created

None

Trigger file for status ID: 00000000260056

does not have to be created No messages needed

Thanks and regards

Chris