How To Fix /SAPAPO/DMRES231 - Resource & is not used in the PPM as a primary or calendar resource

/SAPAPO/DMRES231 - Overview

• Message type: E = Error

• Message class: /SAPAPO/DMRES -

• Message number: 231

• Message text: Resource & is not used in the PPM as a primary or calendar resource

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.

/SAPAPO/DMRES231 - Details

• The SAP error message /SAPAPO/DMRES231 indicates that a specific resource is not being utilized as a primary or calendar resource in the Production Planning and Detailed Scheduling (PP/DS) module of SAP Advanced Planning and Optimization (APO). This error typically arises when you are trying to perform an operation that requires a resource, but the specified resource is not assigned correctly in the relevant planning object, such as a Production Planning Model (PPM).
  
  Cause:
  
  Resource Assignment: The resource in question is not assigned as a primary resource or calendar resource in the PPM.
  Incorrect Configuration: The resource may not be configured correctly in the system, or it may not be linked to the relevant production process.
  Resource Status: The resource might be inactive or not available for the planning period.
  Data Inconsistency: There could be inconsistencies in the master data or planning data that prevent the resource from being recognized.
  
  
  Solution:
  
  
  Check Resource Assignment:
  
  Go to the PPM in