How To Fix SBD_MESSAGES371 - No key fields/key candidates

SAP Error Message - Details

• Message type: E = Error

• Message class: SBD_MESSAGES - Messages for source based DDIC

• Message number: 371

• Message text: No key fields/key candidates

What causes this issue?

System Response

The foreign key fields are not primary key fields of the foreign key
table and do not identify a record of the foreign table uniquely.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SBD_MESSAGES371 - No key fields/key candidates ?

  The SAP error message SBD_MESSAGES371 with the description "No key fields/key candidates" typically occurs in the context of data processing or data extraction, particularly when working with Business Data (BD) or Business Object (BO) models. This error indicates that the system is unable to identify any key fields or key candidates for the operation you are trying to perform.
  Causes:
  
  Missing Key Fields: The data model or structure you are working with does not have any defined key fields. Key fields are essential for uniquely identifying records in a database.
  Incorrect Configuration: The configuration of the data source or the data model may be incorrect, leading to the absence of key fields.
  Data Source Issues: The data source you are trying to access may not have been set up correctly, or it may not contain the necessary key fields.
  Data Model Changes: If there have been recent changes to the data model, such as the removal of key fields, this error may arise.
  Authorization Issues: Sometimes, lack of proper authorizations can prevent the system from accessing key fields.
  
  Solutions:
  
  Check Data Model: Review the data model or structure you are working with to ensure that key fields are defined. You can do this by navigating to the relevant data model in the SAP system and checking the field definitions.
  Define Key Fields: If key fields are missing, you may need to define them in the data model. This typically involves going into the data model configuration and specifying which fields should be treated as keys.
  Review Data Source Configuration: Ensure that the data source is correctly configured and that it includes the necessary key fields. You may need to consult with your SAP administrator or data architect for assistance.
  Check for Recent Changes: If there have been recent changes to the data model, verify that these changes did not inadvertently remove key fields. If they were removed, consider restoring them.
  Authorization Check: Ensure that you have the necessary authorizations to access the key fields. If you suspect authorization issues, contact your SAP security team.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to the data model or transaction you are working with.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes often provide solutions or workarounds for specific error messages.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered the same issue and what solutions they have found.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help you navigate the data model or configuration settings (e.g., SE11 for Data Dictionary, SE80 for Object Navigator).
  
  If the issue persists after trying the above solutions, it may be beneficial to involve your SAP support team or consult with an SAP expert for further troubleshooting.