How To Fix B1091 - Receiver of IDoc is its own logical system

SAP Error Message - Details

• Message type: E = Error

• Message class: B1 - ALE group messages

• Message number: 091

• Message text: Receiver of IDoc is its own logical system

What causes this issue?

The intermediate document passed to the ALE layer is addressed to its
own logical system &v1&.
The processing of this intermediate document was interrupted to prevent
an endless send loop from occurring.

How to fix this error?

Choose one of the following actions:
- Contact your ALE administrator
- Start the workflow process for this intermediate document. Here you
can edit the control record and enter another receiver or cancel this
intermediate document.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message B1091 - Receiver of IDoc is its own logical system ?

  The SAP error message B1091, which states "Receiver of IDoc is its own logical system," typically occurs when an IDoc is being sent to a logical system that is the same as the sender's logical system. This situation is not allowed because IDocs are meant to be exchanged between different systems.
  Cause:
  
  Configuration Issue: The logical system defined for the sender and receiver is the same. This can happen if the configuration for the logical systems in the SAP system is incorrect.
  IDoc Processing Logic: The IDoc processing logic may inadvertently be set to send an IDoc to itself, which is not valid.
  Testing Scenarios: During testing, developers might mistakenly configure the same logical system for both sending and receiving.
  
  Solution:
  
  
  Check Logical System Configuration:
  
  Go to transaction SALE (or SPRO for configuration) and navigate to the relevant settings for logical systems.
  Ensure that the logical system for the sender and receiver are different. You can check this in the "Logical System" settings under "Basic Settings" > "Logical Systems".
  
  
  
  Adjust Partner Profiles:
  
  In transaction WE20, check the partner profiles for the sender and receiver. Ensure that the receiver is set to a different logical system than the sender.
  
  
  
  Review IDoc Processing:
  
  If you are using custom code or enhancements to send IDocs, review the logic to ensure that the IDoc is not being sent to the same logical system.
  
  
  
  Testing:
  
  If this error occurs during testing, ensure that the test configurations are set up correctly with distinct logical systems for sender and receiver.
  
  
  
  Use Different Logical Systems:
  
  If you are working in a development or testing environment, consider using different logical systems for testing purposes to avoid this error.
  
  
  
  Related Information:
  
  IDoc Basics: IDocs (Intermediate Documents) are used in SAP for data interchange between systems. Each IDoc has a sender and a receiver, and they must be different logical systems.
  Logical System: A logical system is a unique identifier for an SAP system in a landscape. It is defined in the system and is used in various configurations, including ALE (Application Link Enabling) and EDI (Electronic Data Interchange).
  Transaction Codes:
  
  WE20: Partner Profiles
  WE21: Port Definition
  SALE: Distribution Model
  BD54: Logical System Configuration
  
  
  
  By following the above steps, you should be able to resolve the B1091 error and ensure that IDocs are sent to the correct logical systems.