Message type: E = Error
Message class:  65 - Securities class data 
Message number: 220
Message text: The valid-from date already exists
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The SAP error message 65220, "The valid-from date already exists," typically occurs when you are trying to create or modify a record (such as a pricing condition, master data, or other time-dependent data) that has a valid-from date that overlaps with an existing record. This means that there is already a record in the system with the same valid-from date, which causes a conflict.
Cause: Overlapping Valid-From Dates: You are attempting to enter a valid-from date that is already in use by another record. Data Entry Error: There may be a mistake in the date you are trying to enter, such as a typo or misunderstanding of the date format. Incorrect Record Deletion: If a record was deleted or modified incorrectly, it may leave behind a conflict with the valid-from date.
Solution: Check Existing Records: Review the existing records for the same object (e.g., pricing conditions, master data) to see if there is already a record
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