How To Fix FDT_CORE150 - No valid interface &1

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_CORE - Formula & Derivation Tool: Core

• Message number: 150

• Message text: No valid interface &1

What causes this issue?

The signature of an BRFplus expression type is defined by an ABAP-OO
interface. The functionality is defined in an ABAP-OO class implementing
that interface. This class also needs to implement the interface
IF_FDT_EXPRESSION.
Optionally there can be further classes defined for an expression type.
These are a query class, a UI class and a data exchange class. For a
detailed description of the functionality provided by these classes,
refer to the BRFplus documentation. If one of the classes is set it
needs to implement a corresponding interface.
These are the following:
The query class needs to implement IF_FDT_OBJECT_QUERY
The UI class needs to implement IF_FDT_UI_DEFINITION
The data exchange class needs to implement IF_FDT_DATA_EXCHANGE_EXTERNAL

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?

Specify a correct interface and correct classes for the expression type.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_CORE150 - No valid interface &1 ?

  The SAP error message FDT_CORE150: No valid interface &1 typically occurs in the context of SAP Forms and Document Management, particularly when working with Adobe Forms or Smart Forms. This error indicates that the system cannot find a valid interface for the specified form or document.
  Cause:
  
  Missing Interface: The specified interface (e.g., a function module or a data interface) that is supposed to be linked to the form does not exist or is not correctly defined.
  Incorrect Configuration: The form may be incorrectly configured, leading to a mismatch between the form and its associated interface.
  Transport Issues: If the form and its interface were transported from one system to another (e.g., from development to production), there may have been issues during the transport process.
  Authorization Issues: The user may not have the necessary authorizations to access the interface.
  
  Solution:
  
  
  Check Interface Definition:
  
  Go to the transaction code SE37 (Function Module) or SE80 (Object Navigator) and verify that the interface exists and is correctly defined.
  Ensure that the interface is active and has the correct parameters.
  
  
  
  Review Form Configuration:
  
  In transaction SFP (Form Builder), check the form configuration to ensure that it is correctly linked to the appropriate interface.
  Make sure that the form is set to use the correct interface name.
  
  
  
  Transport Check:
  
  If the issue arose after a transport, check the transport logs for any errors or warnings related to the form or interface.
  Ensure that all necessary objects were included in the transport request.
  
  
  
  Authorization Check:
  
  Verify that the user has the necessary authorizations to access the interface and execute the form.
  Check the roles and profiles assigned to the user.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the form execution to identify where the error is occurring.
  Use transaction SLG1 to check for application logs that might provide more context about the error.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for the error message number or related keywords in the SAP Support Portal.
  Documentation: Review the official SAP documentation for Adobe Forms or Smart Forms for best practices and troubleshooting tips.
  Community Forums: Engage with the SAP Community or forums like SAP Community Network (SCN) for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the FDT_CORE150 error in your SAP environment.