How To Fix LOP129 - Calendar &1 insufficiently maintained

SAP Error Message - Details

• Message type: E = Error

• Message class: LOP - Logistical contract options

• Message number: 129

• Message text: Calendar &1 insufficiently maintained

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message LOP129 - Calendar &1 insufficiently maintained ?

  The SAP error message LOP129, which states "Calendar &1 insufficiently maintained," typically occurs in the context of logistics and production planning when there is an issue with the calendar settings for a specific plant or work center. This error indicates that the calendar associated with the specified object (e.g., plant, work center) is not properly configured or lacks the necessary details.
  Cause:
  
  Missing Calendar Entries: The calendar associated with the plant or work center may not have been defined correctly or may be missing entries for specific periods.
  Incorrect Calendar Assignment: The calendar assigned to the work center or plant may not be appropriate for the operations being performed.
  Holidays and Working Days: The calendar may not have the correct working days or holidays defined, leading to insufficient maintenance.
  Configuration Issues: There may be issues in the configuration of the calendar settings in the SAP system.
  
  Solution:
  
  
  Check Calendar Configuration:
  
  Go to the transaction code SCAL (Maintain Calendar) in SAP.
  Verify that the calendar associated with the plant or work center is correctly defined and has all necessary entries for working days and holidays.
  
  
  
  Assign Correct Calendar:
  
  Ensure that the correct calendar is assigned to the relevant work center or plant. This can be done in the work center configuration (transaction code CR02 for changing work centers).
  Navigate to the "Basic Data" tab and check the "Calendar" field.
  
  
  
  Maintain Calendar Entries:
  
  If the calendar is missing entries, you can add the required working days and holidays in the calendar maintenance screen.
  Ensure that the calendar covers the entire planning period you are working with.
  
  
  
  Check for Customizations:
  
  If there are any customizations or specific settings in your SAP environment, consult with your SAP Basis or configuration team to ensure that everything is set up correctly.
  
  
  
  Testing:
  
  After making the necessary changes, test the process again to see if the error persists.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  SCAL: Maintain Calendar
  CR02: Change Work Center
  CR03: Display Work Center
  
  
  Documentation: Refer to SAP Help documentation for detailed information on calendar maintenance and work center configuration.
  Support: If the issue persists after checking the above points, consider reaching out to SAP support or your internal SAP support team for further assistance.
  
  By following these steps, you should be able to resolve the LOP129 error and ensure that your calendar settings are properly maintained.