How To Fix SD_CDS_ENTITY021 - Session variable not valid or too many session variables

SD_CDS_ENTITY021 - Overview

• Message type: E = Error

• Message class: SD_CDS_ENTITY - Messages for STOBS/entities

• Message number: 021

• Message text: Session variable not valid or too many session variables

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SD_CDS_ENTITY021 - Session variable not valid or too many session variables ?

  The SAP error message SD_CDS_ENTITY021 typically indicates an issue with session variables in the context of Core Data Services (CDS) views, particularly when working with the SAP S/4HANA system. This error can occur when the session variable is either not valid or when there are too many session variables being used in a single query.
  Causes:
  
  Invalid Session Variable: The session variable being referenced may not be defined correctly or may not exist in the current context.
  Too Many Session Variables: The query may be attempting to use more session variables than the system can handle, leading to performance issues or exceeding limits set by the system.
  Context Issues: The session variable may not be accessible in the context where it is being used, possibly due to scope or lifecycle issues.
  Incorrect Data Type: The session variable may be of an incorrect data type or format that is not compatible with the expected input.
  
  Solutions:
  
  Check Session