How To Fix I18N201 - Customizing already defined for this date range.

I18N201 - Overview

• Message type: E = Error

• Message class: I18N - Message class for SI18N

• Message number: 201

• Message text: Customizing already defined for this date range.

What causes this issue?

You are trying to block a date range for the Islamic calendar, but the
customization of the Islamic calendar already contains custom data in
that date range.

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?

The custom data for the Islamic calendar is defined by report
I18N_MAINTAIN_TISLCAL. Use that report to remove the existing custom
data or select another date range to be blocked.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

I18N201 - Details

• The SAP error message I18N201: Customizing already defined for this date range typically occurs when you are trying to create or modify a customizing entry in the Internationalization (I18N) settings for a date range that already has an existing entry. This is a common issue when working with date-dependent configurations in SAP.
  
  Cause:
  The error is triggered because:
  
  You are attempting to create a new entry for a date range that overlaps with an existing entry.
  The system enforces uniqueness for date ranges to avoid conflicts in configuration.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Entries:
  
  Navigate to the relevant customizing transaction (e.g., SPRO) where you are trying to make the change.
  Look for the existing entries in the date range you are trying to define. You can usually find this in the same customizing area where you are trying to create the new entry.
  
  
  
  Modify or Delete Existing Entries:
  
  If you find an existing