How To Fix /IWFND/MED_CHECK013 - More than one node for root node '&1'

/IWFND/MED_CHECK013 - Overview

• Message type: E = Error

• Message class: /IWFND/MED_CHECK -

• Message number: 013

• Message text: More than one node for root node '&1'

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/MED_CHECK013 - More than one node for root node '&1' ?

  The SAP error message /IWFND/MED_CHECK013 More than one node for root node '&1' typically occurs in the context of SAP Gateway and OData services. This error indicates that the OData service is trying to retrieve data, but it has encountered multiple root nodes for a single entity, which is not allowed in the OData protocol.
  
  Cause:
  
  Multiple Root Nodes: The most common cause of this error is that the OData service definition has been incorrectly configured, leading to multiple root nodes being defined for the same entity.
  Data Model Issues: There may be issues in the underlying data model or the way the associations and navigation properties are defined.
  Service Implementation: The implementation of the service might be returning multiple entries for what should be a single root entity.
  
  
  Solution:
  
  
  Check Service Definition:
  
  Go to the SAP Gateway Service Builder (transaction code SEGW).
  Check the entity types and ensure that there is only one root node defined for