How To Fix EMDUS520 - Used formulas cannot be set to inactive

EMDUS520 - Overview

• Message type: E = Error

• Message class: EMDUS -

• Message number: 520

• Message text: Used formulas cannot be set to inactive

What causes this issue?

You attempted to set an active TOU formula to inactive even though the
formula is already being used in a TOU interface.
You can only use active formulas in a time-of-use interface. You can
only change the name and the notes of active formulas. To change the
input or output parameters, or to delete the formula, you first have to
set the status to inactive. This is only possible if the formula is not
being used in an interface.

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?

First delete the TOU formula from every TOU interface in which it is
used.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EMDUS520 - Used formulas cannot be set to inactive ?

  The SAP error message EMDUS520, which states "Used formulas cannot be set to inactive," typically occurs in the context of SAP's formula management, particularly in modules like SAP Product Lifecycle Management (PLM) or SAP Recipe Management. This error indicates that you are trying to set a formula to inactive status, but the formula is currently in use or referenced by other objects, such as products, recipes, or other formulas.
  
  Cause:
  
  Active References: The formula you are trying to set to inactive is still being referenced by other active objects in the system.
  Dependencies: There may be dependencies or links to other processes, such as production orders, that prevent the formula from being deactivated.
  Authorization Issues: Sometimes, the user may not have the necessary permissions to change the status of the formula.
  
  
  Solution:
  To resolve the EMDUS520 error, you can follow these steps:
  
  
  Check References:
  
  Identify where the formula is being used. You can do this by checking the