How To Fix CRM_ERMS_CAT_MSG312 - Category "&1": no assignment type found for link type "&2"

SAP Error Message - Details

• Message type: E = Error

• Message class: CRM_ERMS_CAT_MSG - Coherent Categorization - Messages

• Message number: 312

• Message text: Category "&1": no assignment type found for link type "&2"

What causes this issue?

The objects cannot be merged because the assignment type setting still
has to be selected in the category "&V1&" of the subordinate schema for
the link type "&V2&". Define the assignment type of the link type "&V2&
"in the table CRMC_ERMS_CAT_LT.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CRM_ERMS_CAT_MSG312 - Category "&1": no assignment type found for link type "&2" ?

  The SAP error message CRM_ERMS_CAT_MSG312 indicates that there is an issue with the assignment type for a specific category in the CRM (Customer Relationship Management) system. This error typically arises when the system is unable to find a valid assignment type for the specified link type in the context of the CRM's Enterprise Resource Management System (ERMS).
  Cause:
  
  Missing Configuration: The most common cause of this error is that the assignment type for the specified category and link type has not been configured in the system.
  Incorrect Link Type: The link type being referenced may not be valid or may not have been set up correctly in the system.
  Data Inconsistency: There may be inconsistencies in the data or configuration settings that lead to the system being unable to find the appropriate assignment type.
  
  Solution:
  
  
  Check Configuration:
  
  Navigate to the configuration settings for the CRM system.
  Ensure that the assignment types are correctly defined for the relevant categories and link types.
  You can do this by going to the customizing transaction (SPRO) and checking the settings under CRM > Basic Functions > ERMS > Define Assignment Types.
  
  
  
  Define Missing Assignment Types:
  
  If the assignment type is missing, you will need to create it. Make sure to define the assignment type for the specific category and link type that is causing the error.
  
  
  
  Validate Link Types:
  
  Check if the link type specified in the error message is valid and correctly configured. You can do this by reviewing the link type settings in the system.
  
  
  
  Test the Configuration:
  
  After making any changes, test the configuration to ensure that the error no longer occurs. You can do this by trying to perform the action that previously triggered the error.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for more detailed guidance on configuring assignment types and link types in the CRM system.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like SPRO (for configuration) or CRMD_ORDER (for managing CRM orders) to access the relevant settings.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Support: If the issue persists after checking the configuration, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  By following these steps, you should be able to resolve the CRM_ERMS_CAT_MSG312 error and ensure that the assignment types are correctly configured in your SAP CRM system.