How To Fix M3171 - Factory calendar & not found in table T001W

M3171 - Overview

• Message type: E = Error

• Message class: M3 - Material Master

• Message number: 171

• Message text: Factory calendar & not found in table T001W

What causes this issue?

You have just maintained consumption values or forecast values. Most
plants have a factory calendar assigned to them in Customizing, but the
system could not find a factory calendar in this case.

How to fix this error?

Ask your systems administrator to maintain the assignment of factory
calendars to plants.

Error message extract from SAP system. Copyright SAP SE.

M3171 - Details

• The SAP error message M3171 indicates that the factory calendar specified in your transaction or configuration is not found in the table T001W. This table contains the factory calendar data, which is essential for various planning and scheduling functions in SAP.
  
  Cause:
  
  Missing Factory Calendar: The factory calendar you are trying to use has not been defined in the system.
  Incorrect Configuration: The factory calendar might be incorrectly configured or referenced in your transaction.
  Data Deletion: The factory calendar may have been deleted or not properly transported from a development environment to production.
  User Authorization: The user may not have the necessary authorizations to access the factory calendar.
  
  
  Solution:
  
  
  Check Factory Calendar Configuration:
  
  Go to transaction code SCAL (Maintain Factory Calendar).
  Verify if the factory calendar you are trying to use exists. If it does not, you will need to create it.
  
  
  
  Create a New Factory Calendar:
  
  If the factory calendar is missing, you can create a new one in the