How To Fix WW644 - The planned date was &. The update date is &.

SAP Error Message - Details

• Message type: E = Error

• Message class: WW - Material group master maintenance

• Message number: 644

• Message text: The planned date was &. The update date is &.

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 WW644 - The planned date was &. The update date is &. ?

  The SAP error message WW644 typically indicates a discrepancy between the planned date and the update date for a work order or maintenance order. This error often arises in the context of work scheduling and resource planning within the SAP system, particularly in modules like PM (Plant Maintenance) or PS (Project System).
  Cause:
  
  Date Mismatch: The planned date for the work order or task is earlier than the update date. This can happen if the order was created or modified after the planned date was set.
  System Configuration: There may be configuration settings in the SAP system that enforce strict date validation rules.
  User Input Error: Users may inadvertently enter incorrect dates when creating or updating work orders.
  
  Solution:
  
  Check Dates: Review the planned date and update date in the work order. Ensure that the planned date is not later than the update date.
  Adjust Dates: If the planned date is incorrect, update it to a date that is earlier than or equal to the update date.
  Review Order Status: Ensure that the work order is in a status that allows for date changes. Some statuses may restrict modifications.
  Consult Documentation: Refer to SAP documentation or help files for specific guidelines on date handling in work orders.
  User Training: Provide training to users on how to correctly enter and update dates in the system to prevent future occurrences of this error.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like IW32 (Change Work Order) or IW33 (Display Work Order) to view and modify work orders.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  System Configuration: Review the configuration settings in the SAP system related to work order management and date handling.
  Support: If the issue persists, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  By addressing the date mismatch and ensuring proper user practices, you can resolve the WW644 error and prevent it from occurring in the future.