How To Fix FSCY170 - Activation not possible; mask for commitment item key active

SAP Error Message - Details

• Message type: E = Error

• Message class: FSCY - Generation of Cover Pools - Flexible Master Data Structure

• Message number: 170

• Message text: Activation not possible; mask for commitment item key active

What causes this issue?

You want to activate the subdivision of master data. However, this is
not possible as a mask is defined for the commitment item in the
Customizing of <LS>Funds Management</> in the IMG activity
<DS:SIMG._ISPSFM_OFED>Define Mask for Commitment Items</>.

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?

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 FSCY170 - Activation not possible; mask for commitment item key active ?

  The SAP error message FSCY170, which states "Activation not possible; mask for commitment item key active," typically occurs in the context of SAP's Controlling (CO) module, particularly when dealing with commitment items in the context of budget management or fund management.
  
  Cause:
  This error usually arises when there is an attempt to activate a commitment item that is already in use or has an active mask. A mask in this context refers to a set of rules or configurations that define how commitment items can be used or activated. If the commitment item key is already active or if there are existing configurations that prevent the activation of the new settings, this error will be triggered.
  
  Solution:
  To resolve the FSCY170 error, you can follow these steps:
  
  
  Check Existing Configurations:
  
  Go to the configuration settings for commitment items in the SAP system. You can do this by navigating to the relevant customizing transaction (e.g., SPRO).
  Look for