How To Fix FDT_CORE045 - No valid line type set for &1

FDT_CORE045 - Overview

• Message type: E = Error

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

• Message number: 045

• Message text: No valid line type set for &1

What causes this issue?

The line type you have assigned to table &v1& is not valid. A valid line
type must satisfy the following conditions:
Line type refers to a data object of type element or structure.
The referenced data object must be a named object.

System Response

The table cannot be activated.

How to fix this error?

Make sure the data object referenced as table line type satisfies the
conditions mentioned above. If the data object is an unnamed object, you
may want to navigate to that object, create a copy, and then use the
copied object as line type.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

FDT_CORE045 - Details

• The SAP error message FDT_CORE045: No valid line type set for &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 is unable to determine a valid line type for a specific element or field in the form.
  
  Cause:
  
  Missing Line Type Configuration: The line type for the specified element (represented by &1) has not been defined or is missing in the configuration.
  Incorrect Form Design: The form may have been designed incorrectly, leading to a situation where the system cannot identify the line type.
  Data Issues: The data being processed may not match the expected format or structure, leading to the inability to assign a line type.
  Version Compatibility: There may be compatibility issues between the form design and the SAP version being used.
  
  
  Solution:
  
  
  Check Line Type Configuration:
  
  Go to the form configuration in the SAP system and ensure