How To Fix CY401 - Capacity requirements can not be displayed

SAP Error Message - Details

• Message type: E = Error

• Message class: CY - Capacity Requirements Planning

• Message number: 401

• Message text: Capacity requirements can not be displayed

What causes this issue?

You cannot display the capacity requirements for the operation since
the value exceeds the length of the display field.

System Response

The display is set to 0.

How to fix this error?

You should change the unit of measure in the capacity.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CY401 - Capacity requirements can not be displayed ?

  The SAP error message CY401: Capacity requirements cannot be displayed typically occurs in the context of capacity planning and production scheduling within the SAP system. This error indicates that the system is unable to retrieve or display the capacity requirements for a particular work center or production order.
  Causes of CY401 Error
  
  
  Missing or Incomplete Data: The work center or production order may not have the necessary data configured, such as capacity planning parameters, or it may be missing relevant master data.
  
  
  Incorrect Configuration: The configuration settings for capacity planning in the work center or routing may not be set up correctly.
  
  
  Authorization Issues: The user may not have the necessary authorizations to view capacity requirements.
  
  
  System Errors: There may be temporary system issues or inconsistencies in the database that prevent the display of capacity requirements.
  
  
  Date Issues: The date range for which the capacity requirements are being requested may not have any data available.
  
  
  Solutions to CY401 Error
  
  
  Check Master Data:
  
  Ensure that the work center and routing are correctly defined and that all necessary fields are filled out.
  Verify that the capacity planning parameters are set up correctly in the work center.
  
  
  
  Review Configuration:
  
  Check the configuration settings for capacity planning in the SAP system. Ensure that the relevant settings for the work center are correctly configured.
  
  
  
  Authorization Check:
  
  Verify that the user has the necessary authorizations to access capacity requirements. This can be done by checking the user roles and authorizations in the SAP system.
  
  
  
  Data Consistency:
  
  Run consistency checks on the relevant data to ensure there are no inconsistencies or errors in the database.
  
  
  
  Check Date Range:
  
  Ensure that the date range for which you are trying to view capacity requirements is valid and that there are capacity requirements available for that period.
  
  
  
  System Logs:
  
  Check the system logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  
  
  Consult SAP Notes:
  
  Look for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide additional troubleshooting steps.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information
  
  Transaction Codes: You may encounter this error while using transaction codes such as CM01 (Capacity Planning), CM21 (Capacity Leveling), or COHV (Mass Processing of Production Orders).
  Capacity Planning: Understanding the basics of capacity planning in SAP, including how work centers, routings, and production orders interact, can help in troubleshooting this error.
  SAP Documentation: Refer to the official SAP documentation for detailed information on capacity planning and related configuration settings.
  
  By following these steps, you should be able to identify and resolve the cause of the CY401 error in SAP.