How To Fix FDT_EXPRESSIONS324 - Table &1: Complex table structure not supported for mail recipients

FDT_EXPRESSIONS324 - Overview

• Message type: E = Error

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

• Message number: 324

• Message text: Table &1: Complex table structure not supported for mail recipients

What causes this issue?

For the current email action, you have defined that the mail recipients
shall be read from table &v1&. However, the line type of this table is
based on a structure data object which refers to a second structure with
more than one field. This is not permitted.

System Response

The email action cannot be activated.

How to fix this error?

Replace table &v1& by a table where the line type contains only one
textfield from which the email addresses are read by the system. As an
alternative, you can also use a table where the line type is defined by
a structure data object as long as this structure contains no more than
one text field.

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_EXPRESSIONS324 - Table &1: Complex table structure not supported for mail recipients ?

  The SAP error message FDT_EXPRESSIONS324 indicates that there is an issue with the structure of a table being used in a context where it is not supported, specifically for mail recipients. This error typically arises when trying to send emails or notifications that involve complex table structures, which the system cannot process.
  
  Cause:
  The error is caused by the use of a complex table structure that is not compatible with the requirements for mail recipients in SAP. This can happen if:
  
  The table contains nested structures or complex data types that cannot be serialized or formatted correctly for email.
  The data being processed is too complex for the email functionality to handle.
  
  
  Solution:
  To resolve this error, you can consider the following approaches:
  
  
  Simplify the Table Structure:
  
  Review the table structure being used and simplify it if possible. Avoid using nested tables or complex data types that may not be supported.
  
  
  
  Use Flat Structures:
  
  If you need to send data