Diagnosis
During parallel processing, at least one exception case has occurred,such as resource_failure. The selected application server suddenly hasno free resources or has developed a communication problem. These areusually only temporary problems.

System Response
After the exception case, the system was able to continue processing.In certain circumstances, documents that were due for processing in theaffected task might not be delivered.

Procedure
Restart the transaction or the job in order to ensure the documents areprocessed.
A short-term resource problem can occur due to system overload. If thiserror occurs often, you should check your settings using transactionRZ12.