Message type: E = Error
Message class:  EIT_REGISTRY - Extension Item Template: Messages for Registry Check 
Message number: 029
Message text: OData Service &1 &2 not mapped to Template Handler for Item Type &3.
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The SAP error message EIT_REGISTRY029 indicates that an OData service is not properly mapped to a template handler for a specific item type. This can occur in scenarios where the OData service is expected to handle certain item types but is not configured correctly in the system.
Cause: Missing Mapping: The OData service specified in the error message is not mapped to a template handler for the given item type. This could be due to a configuration oversight or an incomplete setup. Incorrect Configuration: The OData service might be incorrectly configured in the SAP Gateway or the backend system. Service Activation: The OData service may not be activated or registered properly in the SAP Gateway. Version Mismatch: There could be a version mismatch between the OData service and the expected item type handler.
Solution: Check OData Service Configuration: Go to the SAP Gateway Service Builder (transaction code /IWFND/MAINT_SERVICE) and ensure that the OData service is correctly registered and
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