How To Fix DO340 - Data type attributes changed. Check dependent views.

SAP Error Message - Details

• Message type: E = Error

• Message class: DO - Dictionary: Mass activation of domains and data elements

• Message number: 340

• Message text: Data type attributes changed. Check dependent views.

What causes this issue?

The data type attributes of the data element were changed:
Another domain was assigned to the data element.
The data type attributes of the data element were defined with
<DS:TX.DDDOC_DIRECT_TYPE>direct type entry</> in the past and are now
defined by a domain or vice versa.

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?

Check how the data element is used in views.
Find out the corresponding views with the where-used list for the data
element (use in view fields).
Problems can occur if an alternative data element is assigned to a view
field. In this case both data elements (the data element assigned to
the table field and the alternative data element) must have the same
type.
If both data elements refer to a domain, it must be the same domain. If
the data type attributes for at least one of the two data elements is
defined with direct type entry, the data type, number of places and
decmial places must be the same.
Make sure that the data type attributes are the same for both data
elements and activate the corresponding view. Transport the view
together with the data element changes.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DO340 - Data type attributes changed. Check dependent views. ?

  The SAP error message DO340, which states "Data type attributes changed. Check dependent views," typically occurs when there are changes made to the data type attributes of a field in a table or structure that is being used in dependent views, such as CDS views, database views, or other dependent objects. This can lead to inconsistencies or errors in the dependent views that rely on the modified data type.
  Cause:
  
  Data Type Changes: The most common cause of this error is that the data type of a field in a table or structure has been altered (e.g., changing from CHAR to INT, changing length, etc.).
  Dependent Objects: There are views or other objects that depend on the original data type, and they are now incompatible with the new definition.
  Transport Requests: If changes were made in a development environment and transported to a different environment (like QA or Production), this error may arise if the dependent objects were not properly adjusted.
  
  Solution:
  
  Check Dependent Views: Identify all views and objects that depend on the modified data type. You can use transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to find dependent objects.
  Adjust Dependent Views: Update the dependent views to align with the new data type attributes. This may involve modifying the SQL code or the structure of the views.
  Activate Objects: After making the necessary changes, ensure that you activate all affected objects, including the original table/structure and the dependent views.
  Recheck Data Model: If applicable, review the overall data model to ensure that all changes are consistent and that there are no further dependencies that need to be addressed.
  Testing: After making changes, perform thorough testing to ensure that the views and any related functionality work as expected.
  
  Related Information:
  
  Transaction Codes: Use SE11 for Data Dictionary, SE80 for Object Navigator, and SE37 for function modules to check for dependencies.
  SAP Notes: Check SAP Notes for any known issues or additional guidance related to this error message.
  Documentation: Review SAP documentation on data types and views to understand the implications of changing data types and how to manage dependencies effectively.
  Version Control: If you are using version control for your development objects, ensure that you have a record of changes made to data types and dependent objects.
  
  By following these steps, you should be able to resolve the DO340 error and ensure that your SAP environment remains stable and functional.