How To Fix AD308 - Value table & does not contain any key fields

AD308 - Overview

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 308

• Message text: Value table & does not contain any key fields

What causes this issue?

You have specified a structure as a value table. Only tables
containing data can be used as value tables.

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?

Enter a database table as value table.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AD308 - Value table & does not contain any key fields ?

  The SAP error message AD308 indicates that a value table does not contain any key fields. This error typically arises when you are trying to create or modify a domain or data element in the Data Dictionary (SE11) and the associated value table lacks a primary key.
  
  Cause:
  
  Missing Key Fields: The value table you are trying to use does not have any fields defined as key fields. In SAP, a value table should have at least one key field to uniquely identify records.
  Incorrect Configuration: The value table may have been incorrectly configured or created without defining key fields.
  Data Model Issues: There may be issues in the data model where the value table is expected to have key fields but does not.
  
  
  Solution:
  To resolve the AD308 error, you can follow these steps:
  
  
  Check the Value Table:
  
  Go to transaction SE11 (Data Dictionary).
  Enter the name of the value table that is causing the error and click