How To Fix PN166 - Schema &1 does not have program class 'C'

PN166 - Overview

• Message type: E = Error

• Message class: PN -

• Message number: 166

• Message text: Schema &1 does not have program class 'C'

What causes this issue?

Schema &V1& has an incorrect program class.

System Response

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

How to fix this error?

Use the possible entries function to choose an allowed schema.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

PN166 - Details

• The SAP error message PN166 indicates that there is an issue with the schema in the context of payroll processing. Specifically, the error states that the schema specified (denoted by &1) does not have a program class 'C'. This typically occurs in the context of payroll schemas where the system expects a certain configuration that is not present.
  
  Cause:
  
  Missing Program Class: The schema defined in the payroll configuration is expected to have a program class 'C', which is typically used for certain types of payroll processing. If this class is missing, the system cannot execute the payroll process correctly.
  Incorrect Schema Configuration: The schema might be incorrectly configured or not properly assigned to the relevant payroll area or employee group.
  Custom Modifications: If there have been custom modifications or enhancements to the payroll schema, it might have inadvertently removed or altered the program class settings.
  
  
  Solution:
  
  
  Check Schema Configuration:
  
  Go to the transaction code PE01 (Schema