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

/SAPAPO/PPM_MAINTAIN523 - Overview

• 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

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.

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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