How To Fix E0669 - The basic type & cannot be created as a successor to &

SAP Error Message - Details

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 669

• Message text: The basic type & cannot be created as a successor to &

What causes this issue?

Possible Causes:
As customer, you want to create a successor for an SAP basic type.
The namespace prefixes of the successor and the predecessor do not
agree with one another
The predecessor basic type was not created originally in this system

System Response

How to fix this error?

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

Choose a different predecessor basic type or another name for the
successor.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E0669 - The basic type & cannot be created as a successor to & ?

  The SAP error message E0669 indicates that there is an issue with the creation of a basic type in the Data Dictionary (DDIC). Specifically, it means that the basic type you are trying to create cannot be established as a successor to another basic type due to certain constraints or existing definitions.
  Cause:
  
  Incompatible Data Types: The basic type you are trying to create may not be compatible with the existing basic type it is intended to succeed.
  Naming Conflicts: There may be a naming conflict with existing types or structures in the Data Dictionary.
  Hierarchy Issues: The existing basic type may have restrictions that prevent it from being extended or succeeded by the new type.
  Technical Settings: The technical settings of the existing basic type may not allow for the creation of a successor.
  
  Solution:
  
  Check Compatibility: Ensure that the new basic type you are trying to create is compatible with the existing basic type. Review the data types and structures involved.
  Review Naming Conventions: Make sure that the name of the new basic type does not conflict with existing types. Follow SAP naming conventions to avoid conflicts.
  Examine Existing Definitions: Look at the existing basic type and its technical settings. If it is not designed to allow successors, you may need to reconsider your design.
  Use Alternative Approaches: If creating a successor is not feasible, consider creating a new basic type that does not depend on the existing one or use composition instead of inheritance.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on creating basic types and their relationships.
  
  Related Information:
  
  Data Dictionary (DDIC): The Data Dictionary in SAP is a central repository that defines the structure of data used in the system. Understanding how it works is crucial for resolving issues related to data types.
  ABAP Development: Familiarity with ABAP (Advanced Business Application Programming) can help in understanding how data types are defined and used in SAP applications.
  SAP Notes: Check SAP Notes for any known issues or updates related to this error message. SAP Notes often provide solutions or workarounds for specific problems.
  
  If the issue persists after trying the above solutions, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.