How To Fix AD602 - No further key fields are specified in table &

AD602 - Overview

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 602

• Message text: No further key fields are specified in table &

What causes this issue?

The pool structure contains only one key field TABNAME.

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?

A pool must have at least two key fields (TABNAME and VARKEY). Please
define the field VARKEY. Create the field VARKEY, which contains the
key fields of the pooled tables.
INCLUDE ADIC-POOL-STRUCTURE

Error message extract from SAP system. Copyright SAP SE.

AD602 - Details

• The SAP error message AD602 ("No further key fields are specified in table &") typically occurs when you are trying to create or modify a table in the Data Dictionary (SE11) or when you are working with a database table that does not have a primary key defined. This error indicates that the system requires at least one key field to uniquely identify records in the table.
  
  Cause:
  
  Missing Key Fields: The table you are trying to work with does not have any key fields defined. Every database table must have at least one key field to ensure that each record can be uniquely identified.
  Incorrect Table Definition: The table might have been defined incorrectly, or the key fields may have been removed or not set properly.
  
  
  Solution:
  To resolve the AD602 error, you need to ensure that the table has at least one key field defined. Here are the steps to do this:
  
  
  Open the