How To Fix CNV_IUUC_DB_CONN128 - View &1 does not contain any key fields of table &2.&3, db connection &4

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_DB_CONN - db connection

• Message number: 128

• Message text: View &1 does not contain any key fields of table &2.&3, db connection &4

What causes this issue?

You want to use a database view to select data from a source table
during the replication process. The view that you specified does not
contain any key fields from the source table.

System Response

The system cannot create a logging table for the replication and writes
this error message to the application log.

How to fix this error?

Ensure that the database view contains all key fields from the source
table. Fields in the database view that correspond to a key field of the
source table must have the same name as the key field of the source
table.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_DB_CONN128 - View &1 does not contain any key fields of table &2.&3, db connection &4 ?

  The SAP error message CNV_IUUC_DB_CONN128 indicates that there is an issue with the database connection related to a specific view and table. The message states that the view specified does not contain any key fields from the table mentioned, which can lead to problems when trying to perform operations that require key fields for identification or data manipulation.
  Cause:
  
  Missing Key Fields: The view (&1) does not include any key fields from the specified table (&2). Key fields are essential for uniquely identifying records in a database table.
  Incorrect View Definition: The view may have been defined incorrectly, or it may not have been updated to include the necessary key fields after changes to the underlying table.
  Database Connection Issues: There may be issues with the database connection (&4) that prevent the system from accessing the required metadata or data.
  
  Solution:
  
  
  Check View Definition:
  
  Review the definition of the view (&1) in the SAP system. Ensure that it includes the necessary key fields from the table (&2).
  If the view is missing key fields, you may need to modify the view to include them.
  
  
  
  Update View:
  
  If the underlying table structure has changed (e.g., key fields were added or modified), you may need to regenerate or update the view to reflect these changes.
  
  
  
  Verify Database Connection:
  
  Check the database connection (&4) to ensure it is active and properly configured. Look for any connectivity issues or misconfigurations that might affect access to the database.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific error message for additional guidance and troubleshooting steps.
  
  
  
  Testing:
  
  After making changes, test the view and the database connection to ensure that the error is resolved and that the view can be accessed without issues.
  
  
  
  Related Information:
  
  Key Fields: In SAP, key fields are critical for identifying records uniquely. They are often primary keys in database tables.
  Views in SAP: Views are database objects that present data from one or more tables. They can be used for reporting or data manipulation.
  Database Connections: Ensure that the database connection settings in the SAP system are correct and that the database is accessible.
  
  If the issue persists after following these steps, consider reaching out to your SAP Basis team or consulting SAP support for further assistance.