How To Fix SI009 - Start date is after end date

SAP Error Message - Details

• Message type: E = Error

• Message class: SI - Implementation Guide - Status control

• Message number: 009

• Message text: Start date is after end date

What causes this issue?

The date specified is incorrect. The date specified for the end of an
activity is before its start.

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?

Change the date so that the start is before the end.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SI009 - Start date is after end date ?

  The SAP error message "SI009 Start date is after end date" typically occurs in the context of scheduling or planning activities within SAP, such as in project management, production planning, or other modules where date ranges are specified. This error indicates that the start date you have entered is later than the end date, which is logically incorrect.
  Cause:
  
  Incorrect Date Entry: The most common cause is simply entering the dates incorrectly. For example, you might have accidentally swapped the start and end dates.
  System Configuration: In some cases, the system configuration or settings might 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 date format or may misinterpret the fields.
  
  Solution:
  
  Check Date Entries: Review the start and end dates you have entered. Ensure that the start date is indeed before the end date.
  Correct Format: Make sure that the dates are in the correct format as required by the SAP system (e.g., DD/MM/YYYY or MM/DD/YYYY).
  Validation: Implement validation checks in your input forms to prevent users from entering incorrect date ranges.
  Consult Documentation: If the error persists, consult the relevant SAP documentation or help resources for the specific module you are working with.
  System Configuration: If you suspect a configuration issue, consult with your SAP administrator or technical team to review the settings related to date handling.
  Testing: If you are working in a development or testing environment, try to replicate the issue with different date combinations to identify the root cause.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  Training: Consider training sessions for users to familiarize them with date entry and validation processes in SAP.
  
  By following these steps, you should be able to resolve the "SI009 Start date is after end date" error and ensure that your date entries are valid.