Message type: E = Error
Message class:  CRM_BUPA_TDAR010 - Time-Dependent Appointment Rules 
Message number: 023
Message text: Enter an end date for the validity period
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The SAP error message CRM_BUPA_TDAR010023 indicates that when you are trying to create or modify a business partner (BUPA) in the SAP Customer Relationship Management (CRM) system, you have not provided an end date for the validity period of the business partner data. This is a common requirement in SAP systems to ensure that the data is valid for a specific timeframe.
Cause: The error occurs because: The system requires both a start date and an end date to define the validity period of the business partner data. The end date is either missing or not properly set in the transaction you are trying to execute.
Solution: To resolve this error, you should: Check the Validity Dates: Ensure that you have entered both a start date and an end date for the validity period of the business partner. Enter an End Date: If the end date is missing, enter a valid end date that is later than the
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