How To Fix /IWFND/MED195 - Tag '&1' does not exist

/IWFND/MED195 - Overview

• Message type: E = Error

• Message class: /IWFND/MED -

• Message number: 195

• Message text: Tag '&1' does not exist

Self-Explanatory Message

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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.

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/IWFND/MED195 - Details

• The SAP error message /IWFND/MED195 Tag '&1' does not exist typically occurs in the context of SAP Gateway and OData services. This error indicates that the system is trying to access a tag (or entity) that is not defined or does not exist in the OData service metadata.
  
  Cause:
  
  Missing Tag Definition: The tag specified in the error message (&1) is not defined in the OData service's metadata. This could be due to a missing entity set or a typo in the request.
  Service Not Activated: The OData service might not be activated in the SAP Gateway.
  Incorrect URL: The URL used to access the OData service might be incorrect, leading to a request for a non-existent tag.
  Changes in Metadata: If there have been recent changes to the OData service (like adding or removing entities), the client might still be using an outdated version of the metadata.
  
  
  Solution:
  
  Check Metadata: Verify the OData service metadata to