How To Fix GP851 - Activity &1 is unknown

GP851 - Overview

• Message type: E = Error

• Message class: GP - FI-SL and CO planning

• Message number: 851

• Message text: Activity &1 is unknown

What causes this issue?

Activity &V1& is unknown.

System Response

The system terminated processing.

How to fix this error?

Check the content of table T_Vrgng when function module
K_Tables_For_Activity_Get is called.

Error message extract from SAP system. Copyright SAP SE.

GP851 - Details

• The SAP error message GP851, which states "Activity &1 is unknown," typically occurs in the context of SAP's Human Capital Management (HCM) module, particularly when dealing with the Global Payroll functionality. This error indicates that the system is unable to recognize or find the specified activity (denoted by &1) in the payroll processing.
  Causes:
  
  Incorrect Activity Code: The activity code referenced in the payroll process may be incorrect or not defined in the system.
  
  Configuration Issues: The payroll configuration may not be set up correctly, leading to the system not recognizing certain activities.
  Missing Customization: If the activity is a custom one, it may not have been properly defined or activated in the system.
  Transport Issues: If the system has recently undergone a transport of changes, the activity may not have been included or activated in the target system.
  Version Mismatch: There may be a mismatch between the version of the payroll schema and the activities