How To Fix PO174 - Function not active for changed screen contents

PO174 - Overview

• Message type: E = Error

• Message class: PO - Spooler message

• Message number: 174

• Message text: Function not active for changed screen contents

What causes this issue?

You changed the screen contents and chose "Delete" without first
choosing "Enter".
The delete function can only be used when the screen contents have been
updated by the program (by choosing "Enter"). The reason for this is as
follows:
If, for example, one character number is overwritten by another, the
new number is added to the character number list when the screen
contents are updated. This means that the screen lines can move. This
makes it impossible to choose a line for deletion. In order to prevent
this, this delete option was removed.

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?

Choose "Enter", then, if necessary, position the cursor on the line to
be deleted and choose "Delete".

Error message extract from SAP system. Copyright SAP SE.

PO174 - Details

• The SAP error message "PO174 Function not active for changed screen contents" typically occurs when there is an issue with the screen or transaction you are trying to use in SAP. This error can arise in various contexts, often related to the use of certain functions or features that are not available or not properly configured for the current screen or transaction.
  Causes:
  
  Screen 
  Configuration Issues: The screen you are working on may not be configured to support the function you are trying to use.
  Authorization Issues: The user may not have the necessary authorizations to perform the action on the screen.
  Transaction State: The transaction may be in a state that does not allow certain functions to be executed.
  Custom Development: If there are custom enhancements or modifications in the system, they may not be properly implemented or could be causing conflicts.
  Data Inconsistencies: There may be issues with the data being processed that prevent