How To Fix PSZ1018 - &1 must not be defined in the key column

PSZ1018 - Overview

• Message type: E = Error

• Message class: PSZ1 - PS Payment Planning: Function Group KPP_PSZ

• Message number: 018

• Message text: &1 must not be defined in the key column

What causes this issue?

You have defined &V1& as key column. Only the <LS>commitment item</>
and <LS>transaction currency</> may be defined as key columns.

System Response

The layout cannot be saved.

How to fix this error?

Delete the column with characteristic &V1&.

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 PSZ1018 - &1 must not be defined in the key column ?

  The SAP error message PSZ1018 typically indicates that there is an issue with the configuration of a key field in a particular context, such as a project system (PS) or a related module. The message suggests that a specific field (denoted by &1) is incorrectly defined in a key column, which can lead to inconsistencies or errors in data processing.
  
  Cause:
  
  Incorrect Configuration: The field mentioned in the error message is likely defined as a key field in a table or structure where it should not be. This can happen during the configuration of project definitions, WBS elements, or other related structures.
  Data Model Issues: The data model may have been altered, leading to a situation where a field that should not be a key is being treated as one.
  Custom Development: If there are custom developments or enhancements in the system, they may inadvertently cause this error by misconfiguring key fields.
  
  
  Solution:
  
  Check Configuration: Review