How To Fix /SMB/SBA1051 - The Assigned Type &1 exists in the TDC-alias &2, clear it first

SAP Error Message - Details

• Message type: E = Error

• Message class: /SMB/SBA1 -

• Message number: 051

• Message text: The Assigned Type &1 exists in the TDC-alias &2, clear it first

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 /SMB/SBA1051 - The Assigned Type &1 exists in the TDC-alias &2, clear it first ?

  The SAP error message /SMB/SBA1051 The Assigned Type &1 exists in the TDC-alias &2, clear it first typically occurs in the context of SAP Business One or SAP Business Analytics when there is an attempt to assign a type (like a data type or a business object) to a TDC (Technical Data Container) alias that already has an existing assignment. 
  Cause:
  
  Existing Assignment: The type you are trying to assign (denoted as &1) is already assigned to the TDC alias (denoted as &2).
  Data Integrity: This error is a safeguard to prevent data integrity issues, ensuring that each TDC alias can only have one type assigned to it at a time.
  
  Solution:
  To resolve this error, you need to clear the existing assignment before you can assign a new type. Here are the steps you can follow:
  
  
  Identify the Existing Assignment:
  
  Use transaction codes or relevant SAP tools to check the current assignments for the TDC alias &2.
  Look for the type &1 that is already assigned.
  
  
  
  Clear the Existing Assignment:
  
  Navigate to the configuration or management area where TDC aliases are defined.
  Locate the TDC alias &2 and remove or clear the existing type assignment.
  
  
  
  Reassign the Type:
  
  After clearing the existing assignment, you can now assign the new type &1 to the TDC alias &2.
  
  
  
  Check for Dependencies:
  
  Ensure that there are no dependencies or references that might be affected by clearing the assignment. This is important to maintain the integrity of your data model.
  
  
  
  Test the Changes:
  
  After making the changes, test the functionality to ensure that the new assignment works as expected.
  
  
  
  Related Information:
  
  Documentation: Refer to the SAP Help Portal or specific documentation related to the module you are working with for more detailed instructions on managing TDC aliases and types.
  SAP Notes: Check for any relevant SAP Notes that might provide additional context or solutions for this error.
  Support: If the issue persists or if you are unsure about the changes, consider reaching out to SAP support or your internal SAP team for assistance.
  
  By following these steps, you should be able to resolve the error and successfully manage your TDC alias assignments.