How To Fix PSZ1029 - Variable not allowed in tranaction currency key field

PSZ1029 - Overview

• Message type: E = Error

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

• Message number: 029

• Message text: Variable not allowed in tranaction currency key field

What causes this issue?

You have defined "Transaction currency" as a key column AND set a
variable for this characteristic.

System Response

The planning layout cannot be saved.

How to fix this error?

To ensure free input for the transaction currency, enter "*" instead of
a variable.
If you want to permit planning in one currency only, define the
"Transaction currency" characteristic as part of the general selection
and enter either a variable or a fixed value.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

PSZ1029 - Details

• The SAP error message PSZ1029, which states "Variable not allowed in transaction currency key field," typically occurs in the context of SAP's Project System (PS) module. This error indicates that a variable has been incorrectly used in a field that expects a specific currency key, which is not allowed.
  
  Cause:
  
  Incorrect Configuration: The error often arises when a variable (like a placeholder for a value) is used in a field that is supposed to contain a fixed currency key (e.g., EUR, USD).
  Data Entry Error: Users may inadvertently enter a variable instead of a specific currency code when creating or modifying project-related data.
  Custom Development: If there are custom programs or enhancements, they might be incorrectly handling currency fields.
  
  
  Solution:
  
  Check Configuration: Review the configuration settings in the Project System to ensure that currency fields are set up correctly. Make sure that only valid currency keys are being used.
  Data Validation: Ensure that when entering data, only