How To Fix /IWFND/MED001 - The given model type key '&1' is not a valid meta model type

/IWFND/MED001 - Overview

• Message type: E = Error

• Message class: /IWFND/MED -

• Message number: 001

• Message text: The given model type key '&1' is not a valid meta model type

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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/IWFND/MED001 - Details

• The SAP error message /IWFND/MED001 The given model type key '&1' is not a valid meta model type typically occurs in the context of SAP Gateway and OData services. This error indicates that the system is unable to recognize the specified model type key, which is often due to configuration issues or missing metadata.
  Causes:
  
  Invalid Model Type Key: The model type key specified in the request does not match any of the valid model types defined in the system.
  Missing Metadata: The metadata for the OData service may not be properly defined or may be missing entirely.
  Service Not Activated: The OData service may not be activated in the SAP Gateway.
  Transport Issues: If the service was recently transported from one system to another, there may be inconsistencies in the metadata.
  Incorrect Configuration: There may be incorrect settings in the service configuration or in the model definition.
  
  Solutions:
  
  Check Model Type Key: Verify that the model type