How To Fix C$739 - Expansion mode & is not allowed for identifier tables

C$739 - Overview

• Message type: E = Error

• Message class: C$ -

• Message number: 739

• Message text: Expansion mode & is not allowed for identifier tables

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message C$739 - Expansion mode & is not allowed for identifier tables ?

  The SAP error message C$739, which states "Expansion mode & is not allowed for identifier tables," typically occurs in the context of ABAP programming, particularly when dealing with internal tables and their definitions.
  
  Cause:
  This error arises when you attempt to use an expansion mode (like APPEND, INSERT, or MODIFY) on an identifier table (also known as a "key" table) in a way that is not permitted. Identifier tables are typically defined with a unique key and are used to store unique entries. The expansion modes that are allowed for standard internal tables (like standard tables or sorted tables) are not applicable to identifier tables.
  
  Solution:
  To resolve this error, you should:
  
  
  Check the Table Type: Ensure that you are using the correct type of internal table for your operation. If you need to perform operations that involve adding or modifying entries, consider using a standard table or a sorted table instead of an identifier