How To Fix DDACT016 - The second field must be a key field named VARKEY

DDACT016 - Overview

• Message type: E = Error

• Message class: DDACT - Messages for Activating Dictionary Objects

• Message number: 016

• Message text: The second field must be a key field named VARKEY

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message DDACT016 - The second field must be a key field named VARKEY ?

  The SAP error message DDACT016 indicates that there is an issue with the definition of a data element or structure in the context of a Data Dictionary object. Specifically, it states that the second field in a certain context must be a key field named VARKEY. This error typically arises when working with data elements, structures, or tables that require specific key fields to be defined.
  
  Cause:
  
  Incorrect Structure Definition: The structure or table you are trying to create or modify does not have the required key field VARKEY defined as the second field.
  Data Dictionary Configuration: The Data Dictionary (DDIC) object you are working with may have specific requirements for key fields that are not being met.
  Custom Development: If you are developing custom programs or enhancements, the logic may not align with the expected structure defined in the Data Dictionary.
  
  
  Solution:
  
  
  Check Structure/Table Definition:
  
  Go to the Data Dictionary (transaction SE11).
  Check the definition of the