How To Fix /SAPAPO/ND106 - In order to define calendar, a resource must be entered in PPM &1

/SAPAPO/ND106 - Overview

• Message type: E = Error

• Message class: /SAPAPO/ND -

• Message number: 106

• Message text: In order to define calendar, a resource must be entered in PPM &1

Self-Explanatory Message

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/ND106 - In order to define calendar, a resource must be entered in PPM &1 ?

  The SAP error message /SAPAPO/ND106 indicates that a resource must be defined in the Production Planning and Detailed Scheduling (PP/DS) area before you can define a calendar for that resource. This error typically occurs when you are trying to create or modify a calendar in the Advanced Planning and Optimization (APO) module without having a corresponding resource defined in the system.
  
  Cause:
  
  Missing Resource Definition: The primary cause of this error is that the resource you are trying to associate with a calendar has not been defined in the system.
  Incorrect Resource Assignment: The resource may not be correctly assigned in the relevant planning area or may not exist in the system.
  Data Inconsistency: There may be inconsistencies in the data that prevent the system from recognizing the resource.
  
  
  Solution:
  To resolve this error, follow these steps:
  
  
  Check Resource Definition:
  
  Go to the transaction code /SAPAPO/RES01 (Resource Overview) or /SAPAPO/RES02 (Resource Maintenance).
  Verify that the resource you are trying