How To Fix DO834 - Key category for hashed table corrected to unique

DO834 - Overview

• Message type: E = Error

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

• Message number: 834

• Message text: Key category for hashed table corrected to unique

What causes this issue?

INCLUDE DDDOC_ACCMODE_KEYKIND OBJECT DOKU ID TX
You defined a key category which is not valid for the access mode. It
is automatically corrected to the valid key category.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DO834 - Key category for hashed table corrected to unique ?

  The SAP error message DO834 indicates that there is an issue with the key category of a hashed table in your ABAP program. Specifically, it means that the key category for the hashed table has been corrected to "unique." This typically occurs when the system detects that the key defined for the hashed table does not meet the requirements for a hashed table, which requires unique keys.
  
  Cause:
  
  Non-Unique Keys: The primary cause of this error is that the key fields defined for the hashed table are not unique. Hashed tables require that the key fields must uniquely identify each entry in the table.
  Incorrect Table Definition: The table might have been defined incorrectly in the ABAP code, leading to the system interpreting the key as non-unique.
  Data Inconsistency: If the data being inserted into the hashed table contains duplicates for the key fields, this can trigger the error.
  
  
  Solution:
  
  Check Key Definition: Review the definition