How To Fix B1221 - End date cannot be earlier than the start date

SAP Error Message - Details

• Message type: E = Error

• Message class: B1 - ALE group messages

• Message number: 221

• Message text: End date cannot be earlier than the start date

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message B1221 - End date cannot be earlier than the start date ?

  The SAP error message B1221, which states "End date cannot be earlier than the start date," typically occurs in scenarios where date ranges are being defined, such as in project management, scheduling, or planning transactions. This error indicates that the end date you have entered is before the start date, which is logically incorrect.
  
  Cause:
  
  Incorrect Date Entry: The most common cause is simply entering the end date incorrectly, either by mistyping or selecting the wrong date from a calendar.
  System Configuration: In some cases, the system configuration or business rules may enforce certain date constraints that lead to this error.
  Data Migration Issues: If data has been migrated from another system, there may be inconsistencies in date formats or values.
  User Input Error: Users may not be aware of the correct sequence of dates, leading to confusion.
  
  
  Solution:
  
  Check Date Entries: Review the start and end dates you have entered. Ensure that the end date is