How To Fix FDT_EXPRESSIONS318 - Object &1 (&2) does not return a value of elementary type

FDT_EXPRESSIONS318 - Overview

• Message type: E = Error

• Message class: FDT_EXPRESSIONS - Formula & Derivation Tool: Expressions

• Message number: 318

• Message text: Object &1 (&2) does not return a value of elementary type

What causes this issue?

For the current e-mail action, you have defined a reference to object
&v1& (&v2&). This object returns a value of non-elementary type (for
example, a structure or a table). However, this is not permitted here.
For the intended usage, the object must return a value of type element
(number, text, etc.).

System Response

The element cannot be activated.

How to fix this error?

Replace object &v1& by an object returning a value of elementary 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS318 - Object &1 (&2) does not return a value of elementary type ?

  The SAP error message FDT_EXPRESSIONS318 indicates that there is an issue with an expression in your SAP system that is expected to return a value of an elementary type, but it is not doing so. This typically occurs in the context of using the SAP Fiori or SAP S/4HANA applications where expressions are evaluated, such as in the context of Field-Based Data Transformation (FDT) or similar functionalities.
  
  Cause:
  The error can be caused by several factors:
  
  Incorrect Data Type: The expression you are using is returning a complex type (like a structure or a table) instead of a simple or elementary type (like string, integer, etc.).
  Function Return Type: If you are calling a function or method, it may be returning a type that is not compatible with what is expected.
  Expression Logic: The logic in the expression may be flawed, leading to a return type that does not match the expected elementary type.
  
  
  Solution:
  To resolve