How To Fix CRM_UIU_BT301 - Undefined Reference Type: &1 &2 &3 &4

SAP Error Message - Details

• Message type: E = Error

• Message class: CRM_UIU_BT -

• Message number: 301

• Message text: Undefined Reference Type: &1 &2 &3 &4

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CRM_UIU_BT301 - Undefined Reference Type: &1 &2 &3 &4 ?

  The SAP error message "CRM_UIU_BT301 Undefined Reference Type: &1 &2 &3 &4" typically occurs in the context of SAP CRM (Customer Relationship Management) when there is an issue with the reference type in the Business Transaction (BT) framework. This error indicates that the system is unable to recognize or find the specified reference type, which can lead to issues in processing business transactions.
  Causes:
  
  Missing Configuration: The reference type may not be properly configured in the system. This could be due to missing entries in the customizing settings.
  Incorrect Data: The data being processed may contain invalid or incorrect reference types that do not exist in the system.
  Transport Issues: If the system has recently undergone a transport of changes, the reference types may not have been transported correctly.
  Custom Development: If there are custom developments or enhancements, they may not be correctly implemented or may reference non-existent types.
  
  Solutions:
  
  
  Check Configuration:
  
  Navigate to the customizing settings in SAP (transaction code SPRO).
  Verify the configuration for the reference types in the CRM system. Ensure that all necessary reference types are defined and active.
  
  
  
  Validate Data:
  
  Review the data being processed when the error occurs. Check if the reference types being used are valid and exist in the system.
  Use transaction codes like CRMD_ORDER or CRMD_ORDERADM_H to check the business transaction data.
  
  
  
  Transport Management:
  
  If the issue arose after a transport, check the transport logs to ensure that all necessary objects were transported correctly.
  If needed, re-transport the missing objects or configurations.
  
  
  
  Debugging:
  
  If you have access to debugging tools, you can set breakpoints in the relevant code to identify where the error is being triggered and what reference types are being processed.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific error message. SAP Notes may provide additional insights or patches that can resolve the issue.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot find a resolution, consider reaching out to SAP support for assistance. Provide them with the error message details and any relevant context.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CRMD_ORDER, CRMD_ORDERADM_H, and SPRO for configuration.
  SAP Notes: Search for SAP Notes related to CRM and the specific error message for potential fixes or updates.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.