How To Fix FDT_EXPRESSIONS719 - Cannot use nested object as source (position &1)

FDT_EXPRESSIONS719 - Overview

• Message type: E = Error

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

• Message number: 719

• Message text: Cannot use nested object as source (position &1)

What causes this issue?

During execution of a business rule, the system has tried to access the
object at position &V1& for reading. However, this object cannot be
accessed directly here because it is nested in a superordinate object.
Examples for nested objects:
A structure which is part of a table, due to missing line information.
A field of a structure which is part of a table.

System Response

The nested object cannot be read.

How to fix this error?

Redesign the business rule such that the rule directly accesses the
object in question, rather than trying to access it via the
superordinate object.

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_EXPRESSIONS719 - Cannot use nested object as source (position &1) ?

  The SAP error message FDT_EXPRESSIONS719 indicates that there is an issue with using a nested object as a source in a data expression. This typically occurs in the context of SAP's Flexible Data Model (FDT) or when working with expressions in SAP applications, such as SAP S/4HANA or SAP Fiori.
  
  Cause:
  The error arises when you attempt to use a nested object (an object that is part of another object) as a source for an expression. In many cases, the system does not support this type of operation because it can lead to ambiguity or complexity in data retrieval and processing.
  
  Solution:
  To resolve this error, consider the following steps:
  
  
  Review the Expression: Check the expression where the error occurs. Ensure that you are not trying to directly reference a nested object. Instead, you should reference the parent object or use a different approach to access the data you need.
  
  
  Flatten the Structure: If possible, flatten