How To Fix DHCDC_RT021 - Object &1 (&2) does not have any key fields

SAP Error Message - Details

• Message type: E = Error

• Message class: DHCDC_RT - Messages for Runtime Object of CDC ABAP Agent

• Message number: 021

• Message text: Object &1 (&2) does not have any key fields

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 DHCDC_RT021 - Object &1 (&2) does not have any key fields ?

  The SAP error message DHCDC_RT021 indicates that the specified object (in this case, an object identified by &1 and &2) does not have any key fields defined. This can occur in various contexts, such as when working with Data Warehousing, Data Modeling, or when using the Data Hub.
  Cause:
  
  Missing Key Fields: The object you are trying to work with (like a DataSource, InfoObject, or similar) does not have any key fields defined. Key fields are essential for uniquely identifying records in a database table or data structure.
  Incorrect Configuration: The object may not have been configured correctly, leading to the absence of key fields.
  Data Model Issues: If the object is part of a data model, it may not have been properly set up to include key fields.
  
  Solution:
  
  
  Define Key Fields: 
  
  Go to the object definition in the SAP system.
  Check the configuration settings and ensure that key fields are defined. This typically involves specifying which fields should be treated as keys.
  
  
  
  Review Object Configuration:
  
  If you are working with a DataSource or InfoObject, review its settings in the Data Warehousing Workbench or the relevant transaction (like RSA1 for DataSources).
  Ensure that the object is set up correctly and that all necessary fields are included.
  
  
  
  Check Data Model:
  
  If the object is part of a larger data model, ensure that the model is correctly designed and that all necessary relationships and keys are established.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or help resources for guidance on how to define key fields for the specific type of object you are working with.
  
  
  
  Testing: 
  
  After making changes, test the object to ensure that it now has key fields defined and that the error message no longer appears.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  SAP Community: Engage with the SAP Community forums to see if others have encountered and resolved similar issues.
  Transaction Codes: Familiarize yourself with relevant transaction codes (like RSA1 for Data Warehousing) that can help you navigate to the object in question.
  
  If the problem persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.