How To Fix CR258 - A capacity with number & is already assigned to the resource

SAP Error Message - Details

• Message type: E = Error

• Message class: CR - (1,099) Work Center; (100,200) Capacity

• Message number: 258

• Message text: A capacity with number & is already assigned to the 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message CR258 - A capacity with number & is already assigned to the resource ?

  The SAP error message CR258 indicates that a capacity with a specific number is already assigned to a resource. This typically occurs in the context of capacity planning and resource management within SAP, particularly in modules like SAP Production Planning (PP) or SAP Project System (PS).
  Cause:
  
  Duplicate Assignment: The most common cause of this error is that the capacity you are trying to assign to a resource is already assigned to another resource or the same resource.
  Configuration Issues: There may be configuration issues in the capacity planning settings that lead to conflicts in capacity assignments.
  Data Integrity Issues: There could be inconsistencies in the master data, such as the resource or capacity master records.
  
  Solution:
  
  
  Check Existing Assignments: 
  
  Go to the capacity planning transaction (e.g., CM01, CM21) and check the existing assignments for the capacity number in question. Ensure that it is not already assigned to another resource.
  
  
  
  Remove Duplicate Assignments: 
  
  If you find that the capacity is indeed assigned to another resource, you will need to either remove that assignment or choose a different capacity for your current resource.
  
  
  
  Review Configuration: 
  
  Check the configuration settings in the capacity planning area to ensure that there are no conflicting settings that could lead to this error.
  
  
  
  Data Consistency Check: 
  
  Run data consistency checks to ensure that there are no integrity issues in the master data. This can often be done through transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to review the relevant tables.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or notes related to capacity planning and resource management for any specific guidelines or known issues related to this error.
  
  
  
  Contact SAP Support: 
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CM01 (Capacity Planning), CM21 (Capacity Leveling), and CR01 (Create Capacity).
  Master Data: Understand the structure of capacity and resource master data in SAP, as this will help in troubleshooting.
  SAP Notes: Check for any SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to resolve the CR258 error and ensure proper capacity assignment in your SAP system.