How To Fix CL_SADL_GW_MDE_MSGX054 - Deep navigation property & is not allowed in MDE

SAP Error Message - Details

• Message type: E = Error

• Message class: CL_SADL_GW_MDE_MSGX - texts for parser

• Message number: 054

• Message text: Deep navigation property & is not allowed in MDE

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CL_SADL_GW_MDE_MSGX054 - Deep navigation property & is not allowed in MDE ?

  The SAP error message CL_SADL_GW_MDE_MSGX054 indicates that deep navigation properties are not allowed in the Model Driven Entity (MDE) context. This typically occurs when you are trying to access or navigate through a property that is not directly supported in the context of the MDE.
  Cause:
  
  Deep Navigation: The error arises when a request attempts to navigate through multiple levels of associations (deep navigation) in a single query. For example, if you are trying to access a property of a related entity that itself has further related entities, this can trigger the error.
  Model Configuration: The underlying data model may not be configured to support deep navigation for the specific entity or relationship you are trying to access.
  OData Service Limitations: The OData service may have limitations on how deep navigation properties can be accessed, especially in the context of MDE.
  
  Solution:
  
  Flatten the Query: Instead of trying to access deep navigation properties, consider flattening your query. Retrieve the main entity and then make separate calls to retrieve related entities as needed.
  Check Model Configuration: Review the data model configuration in the SAP system to ensure that the relationships are correctly defined and that deep navigation is supported where necessary.
  Use Alternative Queries: If deep navigation is essential, consider using alternative methods such as:
  
  Using a different service or API that supports deep navigation.
  Writing a custom query or function module that retrieves the necessary data in a single call without deep navigation.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific version you are using to understand the limitations and best practices regarding deep navigation in MDE.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide updates on the behavior of deep navigation in MDE.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, and solutions or workarounds may have been shared.
  OData Documentation: Review the OData documentation for SAP to understand how navigation properties are handled and any constraints that may apply.
  
  By following these steps, you should be able to address the error and implement a solution that meets your requirements without triggering the deep navigation restriction.