How To Fix ER012 - Reference not allowed (cross reference)

ER012 - Overview

• Message type: E = Error

• Message class: ER - IS-U regional structure

• Message number: 012

• Message text: Reference not allowed (cross reference)

What causes this issue?

The desired reference is not permitted, because hierarchy levels that
would be inserted above the reference nodes exist below the original
nodes.

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?

Error message extract from SAP system. Copyright SAP SE.

ER012 - Details

• The SAP error message ER012, which states "Reference not allowed (cross reference)," typically occurs in the context of material management or inventory management when there is an attempt to create a reference to a document or item that is not permitted due to certain constraints or settings in the system.
  Causes:
  
  Cross-Document Reference Restrictions: The system may have restrictions on referencing certain documents or items across different document types or categories.
  Configuration Settings: The configuration settings in the SAP system may not allow for cross-references between certain types of documents or materials.
  Document Status: The document you are trying to reference may be in a status that does not allow for further references (e.g., it may be locked or completed).
  Data Integrity Issues: There may be issues with the data integrity or consistency in the database that prevent the reference from being established.
  
  Solutions:
  
  Check Configuration Settings: Review the configuration settings in the SAP system related to