How To Fix WL171 - Date & does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: WL - Workflow: run-time messages

• Message number: 171

• Message text: Date & does not exist

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WL171 - Date & does not exist ?

  The SAP error message WL171 ("Date & does not exist") typically occurs in the context of logistics or production planning when the system is unable to find a valid date for a specific operation or transaction. This can happen for various reasons, such as incorrect date formats, missing data in the master records, or issues with the configuration of the system.
  Causes:
  
  Invalid Date Input: The date entered may not be in the correct format or may not exist in the calendar.
  Missing Master Data: The relevant master data (like material master, production version, etc.) may not be maintained correctly, leading to the system not recognizing the date.
  Calendar Settings: The factory calendar or holiday calendar may not be set up correctly, causing the system to reject certain dates.
  Data Consistency Issues: There may be inconsistencies in the data that prevent the system from recognizing the date.
  Time Period Restrictions: The date may fall outside of the allowed time periods defined in the system settings.
  
  Solutions:
  
  Check Date Format: Ensure that the date is entered in the correct format as per the system's requirements.
  Verify Master Data: Check the relevant master data for completeness and correctness. Ensure that all necessary fields are filled out.
  Review Calendar Settings: Verify the factory calendar and holiday calendar settings to ensure that the date in question is valid.
  Data Consistency Check: Run consistency checks on the relevant data to identify any discrepancies that may be causing the issue.
  Adjust Time Periods: If the date is outside of the allowed time periods, adjust the settings to include the required date.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like MM02 (Change Material), CO01 (Create Production Order), or MD04 (Stock/Requirements List) to check and update relevant data.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Authorization: Ensure that you have the necessary authorizations to access and modify the relevant data.
  Consult Documentation: Refer to SAP documentation or help files for more detailed information on the specific module you are working with.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant who can provide further assistance.