Message type: E = Error
Message class:  FIRU_PROPERTY_TAX - Property Tax 
Message number: 023
Message text: Entered period clashes with another concession (from &1 to &2)
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The SAP error message FIRU_PROPERTY_TAX023 indicates that there is a conflict with the entered period for a concession in the property tax module. This typically occurs when you are trying to enter a new concession or modify an existing one, but the period you are trying to use overlaps with another concession that has already been defined in the system.
Cause: Overlapping Periods: The most common cause of this error is that the period you are trying to enter for a concession overlaps with an existing concession period. For example, if you are trying to enter a concession from January 1, 2023, to December 31, 2023, but there is already a concession defined from June 1, 2023, to December 31, 2023, this will trigger the error. Incorrect Data Entry: Sometimes, the error can be caused by incorrect data entry, such as entering the wrong start or end dates.
Configuration Issues: There may be configuration
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