How To Fix MN307 - Week & not allowed (internal error)

SAP Error Message - Details

• Message type: E = Error

• Message class: MN - Message class for subsequent settlement (Purchasing)

• Message number: 307

• Message text: Week & not allowed (internal error)

What causes this issue?

Week &V1& is not allowed (invalid character, not in admissible range,
etc.). The field may even be empty.
The error occurred in function module &V2&. It may be due to one of the
following reasons:

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

internal program error
faulty call of function module &V2& with invalid or inconsistent data

System Response

How to fix this error?

Contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MN307 - Week & not allowed (internal error) ?

  The SAP error message MN307 ("Week & not allowed (internal error)") typically occurs in the context of the SAP system's handling of time-related data, particularly in the areas of time management or payroll processing. This error can arise due to various reasons, including configuration issues, data inconsistencies, or system bugs.
  Possible Causes:
  
  Incorrect Configuration: The configuration settings for the time management or payroll module may not be set up correctly, leading to the system rejecting certain weeks.
  Data Inconsistencies: There may be inconsistencies in the time data, such as overlapping time entries or incorrect date formats.
  Calendar Issues: The calendar settings in the system may not align with the expected weeks, especially if there are custom calendars or holiday settings.
  Internal System Error: This could be a bug or an internal error within the SAP system that needs to be addressed by SAP support.
  
  Solutions:
  
  Check Configuration: Review the configuration settings for the time management or payroll module. Ensure that the settings for work weeks, calendars, and time types are correctly defined.
  Data Validation: Validate the time data entries for the employee or period in question. Look for any overlapping entries or incorrect date formats that could be causing the issue.
  Review Calendar Settings: Check the calendar settings in the system to ensure they are correctly set up. Make sure that the weeks align with the expected payroll periods.
  SAP Notes and Support: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. If the issue persists, consider reaching out to SAP support for assistance.
  Testing in Development: If possible, replicate the issue in a development or test environment to better understand the cause and test potential solutions without affecting production data.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like PA30 (Maintain HR Master Data) or PT60 (Time Evaluation) to investigate the employee's time data.
  SAP Notes: Look for SAP Notes related to time management and payroll processing that may provide additional insights or patches for known issues.
  Documentation: Review SAP documentation related to time management and payroll to ensure compliance with best practices and configurations.
  
  If the error persists after trying the above solutions, it may be necessary to involve your SAP Basis or technical team to investigate further, as it could require deeper system analysis or debugging.