How To Fix B1754 - IDocs in serialization group & are still in the tRFC queue

B1754 - Overview

• Message type: E = Error

• Message class: B1 - ALE group messages

• Message number: 754

• Message text: IDocs in serialization group & are still in the tRFC queue

What causes this issue?

Not all the IDocs for serialization group &v1& have been successfully
sent yet. For this reason the serialization group cannot be updated in
the receiving system without errors occurring. If the flag is not set
to 'Always send control message', no control IDoc will be sent.

How to fix this error?

Send the requests again manually. Select Tools -> ALE -> Administration
-> Periodic processing -> Transactional RFC and execute the Transaction
BD42 again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message B1754 - IDocs in serialization group & are still in the tRFC queue ?

  The SAP error message B1754 indicates that there are IDocs (Intermediate Documents) that are part of a serialization group and are still present in the tRFC (Transactional Remote Function Call) queue. This situation typically arises when there are issues with processing IDocs that are dependent on one another due to serialization.
  
  Cause:
  
  Serialization Group: IDocs are often processed in a specific order when they belong to a serialization group. If one or more IDocs in that group fail or are delayed, it can prevent the entire group from being processed.
  tRFC Queue Issues: The tRFC queue may have entries that are stuck or not being processed due to various reasons, such as network issues, system performance problems, or errors in the IDocs themselves.
  Error in IDoc Processing: If there are errors in the IDocs that prevent them from being processed successfully, they will remain in the queue.
  
  Configuration Issues: Incorrect configuration of the IDoc processing