How To Fix /SAPAPO/PPM_MAINTAIN523 - No resource is defined as a calendar resource in mode &1 &2 &3

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/PPM_MAINTAIN -

• Message number: 523

• Message text: No resource is defined as a calendar resource in mode &1 &2 &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/PPM_MAINTAIN523 - No resource is defined as a calendar resource in mode &1 &2 &3 ?

  The SAP error message /SAPAPO/PPM_MAINTAIN523 indicates that there is an issue with the resource configuration in the Advanced Planning and Optimization (APO) module, specifically related to the definition of a calendar resource. This error typically arises when a resource is not properly defined to be used as a calendar resource in the specified mode.
  Cause:
  The error can occur due to several reasons:
  
  Resource Configuration: The resource you are trying to use is not defined as a calendar resource in the system.
  Incorrect Mode: The mode specified in the error message may not be correctly set up for the resource.
  Missing Calendar Assignment: The resource may not have an associated calendar that defines its availability.
  Data Inconsistency: There may be inconsistencies in the master data related to the resource.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Resource Definition:
  
  Go to the resource master data in the APO system.
  Verify that the resource is defined correctly and is marked as a calendar resource.
  
  
  
  Assign a Calendar:
  
  Ensure that a calendar is assigned to the resource. You can do this by navigating to the resource's details and checking the calendar assignment.
  If no calendar is assigned, create or assign an appropriate calendar that reflects the working hours and availability of the resource.
  
  
  
  Review Modes:
  
  Check the modes defined for the resource. Ensure that the mode you are trying to use is correctly configured and that it is set up to utilize the calendar resource.
  
  
  
  Consistency Check:
  
  Perform a consistency check on the resource data to identify any discrepancies or missing information.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific details on configuring resources and calendars in APO.
  
  
  
  Testing:
  
  After making the necessary changes, test the configuration by attempting to execute the process that triggered the error again.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like /SAPAPO/RES01 to view resource details and /SAPAPO/PPM for planning board functionalities.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on this error.
  User Roles: Ensure that you have the necessary authorizations to make changes to resource configurations in the system.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or APO functional team for further investigation.