How To Fix C7104 - Start date must not be later than finish date

SAP Error Message - Details

• Message type: E = Error

• Message class: C7 - Scheduling

• Message number: 104

• Message text: Start date must not be later than finish date

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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 C7104 - Start date must not be later than finish date ?

  The SAP error message C7104 ("Start date must not be later than finish date") typically occurs in the context of project management or scheduling within SAP, particularly when dealing with tasks, activities, or project planning. This error indicates that the start date of a task or activity is set to a date that is later than its finish date, which is logically incorrect.
  Cause:
  
  Incorrect Date Entry: The most common cause is that the user has mistakenly entered the start date after the finish date.
  Data Migration Issues: If data has been migrated from another system, there may be inconsistencies in date entries.
  System Configuration: In some cases, system settings or configurations may lead to incorrect date calculations or defaults.
  User Error: Users may inadvertently select the wrong dates due to interface issues or misunderstanding of the date fields.
  
  Solution:
  
  Check Date Entries: Review the start and finish dates for the task or activity in question. Ensure that the start date is earlier than the finish date.
  Correct the Dates: If the start date is indeed later than the finish date, correct it by entering a valid start date that is earlier than the finish date.
  Validation Rules: Ensure that any validation rules or settings in the system are correctly configured to prevent this error from occurring in the future.
  Data Review: If the error arises from data migration, review the data for inconsistencies and correct any erroneous entries.
  User Training: Provide training or documentation to users to help them understand how to correctly enter dates in the system.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using transaction codes like CJ20N (Project Builder), CJ02 (Change Project), or others related to project management.
  SAP Notes: Check SAP Notes for any known issues or patches related to date handling in your specific version of SAP.
  Documentation: Refer to SAP documentation for guidelines on project management and scheduling to understand how date fields should be used.
  Support: If the issue persists after checking the above, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  By following these steps, you should be able to resolve the C7104 error and ensure that your project scheduling is accurate.