How To Fix PSZ1023 - Currency may only accept input as a key column

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 023

• Message text: Currency may only accept input as a key column

What causes this issue?

In the planning layout, you have flagged the <LS>Currency</> value
column as ready for input.
As currencies depend on constand factors, such as objects, controlling
areas, or FM areas, you cannot change them. This means that the column
must not be flagged as ready for input.

System Response

The system does not save the layout.

How to fix this error?

Do not flag the currency column as ready for input.
If you want to work with transaction currencies, you can enter the
commitment item and transaction currency in the key column. This way,
you can choose whatever currency you like in the planning session.

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 PSZ1023 - Currency may only accept input as a key column ?

  The SAP error message PSZ1023, which states "Currency may only accept input as a key column," typically occurs in the context of SAP's Project System (PS) module. This error indicates that the currency field is being treated incorrectly in a context where it is not allowed to be modified or inputted as a regular field.
  
  Cause:
  
  Field Configuration: The currency field is often configured as a key field in certain contexts, meaning it is expected to be derived from other data rather than manually entered.
  Data Entry Context: The error may arise when trying to enter or modify data in a transaction or report where the currency is not allowed to be changed directly.
  Master Data Issues: If the master data (like project definitions or WBS elements) is not set up correctly, it may lead to this error when trying to input currency values.
  
  
  Solution:
  
  Check Field Configuration: Review the configuration of the currency field in