How To Fix CR278 - Resource & plant & is already assigned to this resource network

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 278

• Message text: Resource & plant & is already assigned to this resource network

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 CR278 - Resource & plant & is already assigned to this resource network ?

  The SAP error message CR278 indicates that a specific resource (such as a machine or labor) is already assigned to a resource network in a particular plant. This typically occurs when you attempt to assign a resource to a network that is already occupied by that resource.
  Cause:
  
  Duplicate Assignment: The resource you are trying to assign is already linked to another network or is already assigned to the same network.
  Incorrect Configuration: There may be a configuration issue in the resource planning or network assignment settings.
  Data Integrity Issues: There could be inconsistencies in the data, such as incorrect entries in the resource master data or network data.
  
  Solution:
  
  
  Check Existing Assignments: 
  
  Go to the resource network in question and check if the resource is already assigned. You can do this by navigating to the relevant transaction (e.g., CNE1 for network overview) and reviewing the assignments.
  
  
  
  Remove Duplicate Assignment: 
  
  If the resource is indeed already assigned to another network, you will need to either remove it from the existing assignment or reassign it as needed. This can be done in the network maintenance transaction (e.g., CNE2 for changing networks).
  
  
  
  Review Resource Master Data: 
  
  Ensure that the resource master data is correctly configured. Check for any inconsistencies or errors in the resource settings that might be causing the issue.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or help files related to resource planning and network assignments for any specific guidelines or best practices.
  
  
  
  Contact Support: 
  
  If the issue persists and you cannot identify the cause, consider reaching out to your SAP support team or consulting with SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CNE1 (Create Network), CNE2 (Change Network), and CR01 (Create Resource).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Authorization: Ensure that you have the necessary authorizations to make changes to resource assignments in the system.
  System Logs: Review system logs for any additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to resolve the CR278 error and successfully manage your resource assignments in SAP.