Message type: E = Error
Message class:  VHUMI - Messages for material identification 
Message number: 027
Message text: Document date is in the past
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.
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The SAP error message VHUMI027: Document date is in the past typically occurs when you are trying to create or process a document (such as a delivery, invoice, or other transactional document) with a document date that is earlier than the current date. This is a common validation check in SAP to ensure that documents are not backdated beyond a certain point, which can help maintain data integrity and compliance.
Cause: Document Date: The date you have entered for the document is set to a date that is earlier than the current system date. System Settings: The system may have specific settings or configurations that restrict the use of past dates for certain types of documents. User Input Error: The user may have mistakenly entered the wrong date.
Solution: Change Document Date: Update the document date to the current date or a future date, depending on your business requirements. Check System Date: Ensure that the system date
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