Message type: E = Error
Message class:  VO - W&S: Rough workload forecast + picking wave 
Message number: 009
Message text: Date & cannot be converted into weekday
There is a problem determining the fixed values for domains in the
Dictionary.
The system continues to work with an empty "weekday" field.
You can carry on with your current work, but please inform your system
administrator as soon as possible.
Error message extract from SAP system. Copyright SAP SE.
SAP Error Message: VO009 - "Date & cannot be converted into weekday"
Cause: This error occurs when SAP tries to convert a given date into a weekday but fails. The typical reasons include: The date value passed to the function or program is invalid, incorrectly formatted, or outside the acceptable range. The date field might be empty or contain non-date characters. The system's date conversion routines encounter unexpected input, such as a date that does not exist (e.g., 31st of February). Sometimes, this error can occur if the date is in a format not recognized by the system locale or if the date is not properly converted to internal SAP date format (YYYYMMDD).
Solution: Check the Date Input: Verify that the date value being processed is valid and correctly formatted. Ensure the date is in the internal SAP format (YYYYMMDD) before conversion. Check for empty or null date fields and handle them appropriately. Debug the Program or Function Module: Identify where the date conversion
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