How To Fix /SAPAPO/MA811 - Invalid factory calendar day

/SAPAPO/MA811 - Overview

• Message type: E = Error

• Message class: /SAPAPO/MA -

• Message number: 811

• Message text: Invalid factory calendar day

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 /SAPAPO/MA811 - Invalid factory calendar day ?

  The SAP error message /SAPAPO/MA811 Invalid factory calendar day typically occurs in the context of Advanced Planning and Optimization (APO) when there is an issue with the factory calendar settings. This error indicates that the system is trying to access a date that is not valid according to the factory calendar defined for the relevant location or production facility.
  Causes:
  
  Invalid Date: The date being referenced may not exist in the factory calendar. For example, it could be a weekend or a holiday that is not defined as a working day.
  Factory Calendar Configuration: The factory calendar may not be properly configured or may not include the necessary working days.
  Mismatch in Date Formats: There could be a mismatch in the date formats being used in the system.
  Data Entry Errors: Manual entries or data uploads may have introduced invalid dates.
  
  Solutions:
  
  
  Check Factory Calendar:
  
  Go to the transaction code SCAL (Maintain Factory Calendar) in SAP.
  Verify that the