How To Fix TG820 - No entry found in table UVERS (system not switched?)

TG820 - Overview

• Message type: E = Error

• Message class: TG - Messages for Upgrade Repository Switch

• Message number: 820

• Message text: No entry found in table UVERS (system not switched?)

What causes this issue?

All upgrades are entered in table UVERS. The program searches for an
entry in UVERS. This entry does not exist.
This generally indicates serious errors in an earlier upgrade. Please
check whether the system was already provided with a repository switch
upgrade successfully. If necessary, contact your system administration.

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

System Response

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

TG820 - Details

• The SAP error message TG820, which states "No entry found in table UVERS (system not switched?)", typically indicates that the system is unable to find the necessary versioning information in the UVERS table. This can occur in various scenarios, particularly when dealing with version management in SAP.
  
  Cause:
  
  Missing Entries: The UVERS table is used to store versioning information for various objects in SAP. If there are no entries in this table, it may indicate that the system has not been properly initialized for version management.
  System Configuration: The system may not be configured correctly for versioning, or the versioning feature may not be activated.
  Transport Issues: If the system is newly set up or if there have been recent transports, the necessary entries may not have been transported correctly.
  Database Issues: There could be issues with the database that prevent the table from being accessed or read correctly.
  
  
  Solution:
  
  Check Table UVERS: Use transaction SE11 or