How To Fix SQ037 - Undefined queue type

SQ037 - Overview

• Message type: E = Error

• Message class: SQ - Queue Administration Transaction: Error Texts

• Message number: 037

• Message text: Undefined queue type

What causes this issue?

Type of queue not defined.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Queue must be flagged as
A - Appendable or
U - Unique

Error message extract from SAP system. Copyright SAP SE.

SQ037 - Details

• The SAP error message SQ037, which states "Undefined queue type," typically occurs in the context of SAP's queuing and messaging systems, particularly when working with SAP's Application Link Enabling (ALE) or other messaging frameworks. This error indicates that the system is trying to reference a queue type that has not been defined or is not recognized by the system.
  Causes:
  
  Incorrect Configuration: The queue type may not be properly configured in the system. This could be due to missing entries in the relevant configuration tables.
  Typographical Errors: There may be a typo in the queue type name or identifier being referenced in the configuration or code.
  Missing Customization: If you are using a custom queue type, it may not have been created or activated in the system.
  Transport Issues: If the configuration was transported from another system, the transport may not have included all necessary objects or settings.
  
  Solutions:
  
  
  Check Configuration: 
  
  Go to transaction SMQ1 (for outbound