How To Fix RSRTS_CDS401 - CDS function &1 is not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: RSRTS_CDS - Messages Transient CDS Queries

• Message number: 401

• Message text: CDS function &1 is not supported

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSRTS_CDS401 - CDS function &1 is not supported ?

  The SAP error message RSRTS_CDS401 indicates that a CDS (Core Data Services) function is not supported in the context where it is being used. This error typically arises when trying to execute a CDS view or function that is not compatible with the current environment or settings.
  Causes:
  
  Unsupported Functionality: The CDS function you are trying to use may not be supported in the version of SAP you are using or in the specific context (e.g., certain types of queries or operations).
  Incorrect Configuration: There may be configuration issues in the system that prevent the CDS function from being executed properly.
  Authorization Issues: The user executing the CDS function may not have the necessary authorizations to access the data or execute the function.
  Technical Limitations: Some CDS functions may have limitations based on the underlying database or the way the data is modeled.
  
  Solutions:
  
  Check Compatibility: Ensure that the CDS function you are trying to use is supported in your version of SAP. Refer to the SAP documentation for the specific version you are using.
  Review Configuration: Check the configuration settings related to the CDS views and ensure that everything is set up correctly. This includes checking the data source and any related settings.
  Authorization Check: Verify that the user has the necessary authorizations to execute the CDS function. You may need to consult with your SAP security team to ensure proper roles and permissions are assigned.
  Debugging: If you have access to the development environment, you can debug the CDS function to identify where the issue is occurring. This may provide insights into what is causing the error.
  Consult SAP Notes: Look for any relevant SAP Notes or Knowledge Base Articles (KBAs) that may address this specific error. SAP frequently updates its documentation and provides fixes for known issues.
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including the context in which it occurs.
  
  Related Information:
  
  SAP Documentation: Always refer to the official SAP Help Portal for the most accurate and up-to-date information regarding CDS views and functions.
  Community Forums: SAP Community and other forums can be helpful for finding similar issues faced by other users and potential solutions.
  Training and Resources: If you are frequently working with CDS views, consider additional training or resources to better understand their capabilities and limitations.
  
  By following these steps, you should be able to diagnose and resolve the RSRTS_CDS401 error effectively.