How To Fix AH418 - Enter dates that do not overlap

SAP Error Message - Details

• Message type: E = Error

• Message class: AH - IS-U billing (master data)

• Message number: 418

• Message text: Enter dates that do not overlap

What causes this issue?

Overlapping operand values were specified for the period &v1& -- &v2&.

System Response

How to fix this error?

Maintain from-dates and to-dates so that periods do not overlap.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AH418 - Enter dates that do not overlap ?

  The SAP error message AH418 ("Enter dates that do not overlap") typically occurs in the context of managing time periods, such as when entering or modifying data related to time management, project management, or resource planning. This error indicates that the date ranges you are trying to enter overlap with existing date ranges in the system, which is not allowed.
  Cause:
  
  Overlapping Date Ranges: The most common cause of this error is that the start and end dates you are trying to enter for a new record overlap with an existing record in the database.
  Incorrect Data Entry: Users may inadvertently enter incorrect dates that overlap with existing entries.
  Configuration Settings: In some cases, the system configuration may enforce strict rules regarding date ranges, leading to this error.
  
  Solution:
  
  Check Existing Records: Review the existing records in the system to identify any overlapping date ranges. You can do this by querying the relevant tables or using transaction codes that display the records in question.
  Adjust Dates: Modify the start and end dates of the new entry so that they do not overlap with existing entries. Ensure that the new date range is entirely outside the range of existing records.
  Use Date Validation Tools: If available, use any built-in validation tools or reports in SAP to check for overlapping dates before entering new records.
  Consult Documentation: Review the relevant SAP documentation or help files for specific guidelines on date entry for the module you are working with.
  Seek Help from SAP Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting SAP Notes for any known issues or patches related to this error.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using different transaction codes (e.g., CATS for time sheets, CJ20N for project management) where this error can occur.
  SAP Notes: Check SAP Notes for any updates or patches that may address this issue.
  User Training: Ensure that users are trained on how to enter date ranges correctly to avoid this error in the future.
  
  By following these steps, you should be able to resolve the AH418 error and successfully enter the required date ranges in SAP.