How To Fix DD_MT_SHARING105 - Table &1, Field &2: Type change &3 -> &4 not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: DD_MT_SHARING - DDIC Multi Tenancy Sharing: Messages

• Message number: 105

• Message text: Table &1, Field &2: Type change &3 -> &4 not supported

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 DD_MT_SHARING105 - Table &1, Field &2: Type change &3 -> &4 not supported ?

  The SAP error message DD_MT_SHARING105 indicates that there is an issue with a type change for a field in a database table. Specifically, it means that a change in the data type of a field is not supported due to the way the field is being used or shared across different database objects.
  Cause:
  
  Type Change: The error occurs when there is an attempt to change the data type of a field in a table that is already being used in other database objects (like views, indexes, or other tables).
  Data Consistency: SAP enforces strict data consistency rules, and changing a field's type can lead to inconsistencies if that field is referenced elsewhere.
  Field Sharing: The field in question may be shared among multiple tables or structures, and changing its type could affect those references.
  
  Solution:
  
  Check Dependencies: Use transaction code SE11 (Data Dictionary) to check the dependencies of the table and field in question. Look for any views, indexes, or other tables that reference the field.
  Remove Dependencies: If possible, remove or adjust the dependencies that are causing the issue. This may involve modifying or deleting views or indexes that reference the field.
  Use a New Field: Instead of changing the type of the existing field, consider creating a new field with the desired data type. You can then migrate the data from the old field to the new field if necessary.
  Consult Documentation: Review SAP documentation or notes related to the specific error message for any additional guidance or best practices.
  Transport Requests: If the change is part of a transport request, ensure that all related objects are included in the transport to avoid inconsistencies.
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE14 (Database Utility), SE80 (Object Navigator).
  SAP Notes: Check for any relevant SAP Notes that may provide additional context or solutions for this specific error.
  Data Dictionary: Familiarize yourself with the Data Dictionary concepts in SAP, as understanding how tables and fields are interrelated can help prevent such issues in the future.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or ABAP team for further assistance.