Message type: E = Error
Message class:  MDG_ES_SEARCH - Messages for Enterprise Search Enablement of MDG 
Message number: 020
Message text: ES structure does not exist for entity &1 of data model &2
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The SAP error message MDG_ES_SEARCH020 indicates that the system is unable to find the ES (Entity Structure) for a specific entity in the specified data model. This typically occurs in the context of SAP Master Data Governance (MDG) when trying to perform a search or access data related to a specific entity.
Cause: Missing Entity Structure: The most common cause is that the entity structure for the specified entity does not exist in the data model. This could happen if the entity was not properly defined or activated in the MDG configuration. Incorrect Data Model Configuration: The data model may not be correctly configured, leading to the absence of the required entity structure. Transport Issues: If the configuration was transported from one system to another (e.g., from development to production), there may have been issues during the transport that caused the entity structure to not be included. Custom Development: If there are custom entities or
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