How To Fix DO859 - &: Row type as key not allowed (table type is row type)

DO859 - Overview

• Message type: E = Error

• Message class: DO - Dictionary: Mass activation of domains and data elements

• Message number: 859

• Message text: &: Row type as key not allowed (table type is row type)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DO859 - &: Row type as key not allowed (table type is row type) ?

  The SAP error message DO859 indicates that there is an issue with the use of a row type as a key in a table type that is defined as a row type. This typically occurs in ABAP programming when you are trying to use a structure (row type) as a key for a table that is also defined as a row type.
  
  Cause:
  The error arises because:
  
  In ABAP, a table type can either be a standard table, sorted table, or hashed table. When you define a table type as a row type, it means that the table is intended to hold multiple entries of a structure.
  Using a row type as a key is not allowed because keys must be unique identifiers, and row types do not provide a unique key structure.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Change the Table Type: If you need to use a key, consider changing