How To Fix SADL_GW022 - Navigation with more than one step is not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_GW -

• Message number: 022

• Message text: Navigation with more than one step is not supported

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_GW022 - Navigation with more than one step is not supported ?

  The SAP error message SADL_GW022 indicates that there is an issue with navigation in the SAP system, specifically when trying to navigate through multiple steps in a data model or service. This error typically arises in the context of SAP Gateway and the SAP ABAP programming model, particularly when using the SAP Data Access Layer (SADL) for OData services.
  Cause:
  The error occurs when a user attempts to navigate through a data model that involves more than one step in the navigation path. For example, if you are trying to access a related entity that requires multiple joins or steps to reach, the system does not support this type of navigation in the current configuration or implementation.
  Solution:
  To resolve the SADL_GW022 error, consider the following approaches:
  
  
  Simplify Navigation: If possible, simplify the navigation path to ensure that it only involves a single step. This may involve restructuring your queries or the way you access related entities.
  
  
  Check Data Model: Review the data model and ensure that the relationships between entities are correctly defined. Ensure that the navigation properties are set up properly in the ABAP CDS views.
  
  
  Use Alternative Queries: If the navigation is complex, consider using alternative methods to retrieve the data. For example, you might need to perform separate queries for each entity and then combine the results in your application logic.
  
  
  Update OData Service: If you are using an OData service, ensure that the service is correctly defined and that it supports the required navigation. You may need to adjust the service definition or the underlying data model.
  
  
  Check for SAP Notes: Look for any relevant SAP Notes or updates that might address this issue. Sometimes, specific versions of SAP software may have known issues that are resolved in later patches.
  
  
  Consult Documentation: Review the SAP documentation related to SADL and OData services to understand the limitations and best practices for navigation.
  
  
  Related Information:
  
  SAP Gateway: Understand how SAP Gateway works and its limitations regarding navigation.
  ABAP CDS Views: Familiarize yourself with Core Data Services (CDS) and how they define relationships between entities.
  OData Services: Learn about OData service creation and consumption, especially in the context of SAP Fiori applications.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed information about the context in which the error occurs.