How To Fix AD259 - This number of key fields is not permitted with generic buffering

AD259 - Overview

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 259

• Message text: This number of key fields is not permitted with generic buffering

What causes this issue?

You want to buffer a table generically, but specified an incorrect
number of key fields. For generic buffering, you must specify a number
of key fields between 1 and n-1, where n is the number of key fields
in the table. If the table has only one key field, generic buffering is
not possible.

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?

You can find out the possible number of key fields using the input help
in the corresponding entry field. Select one of the numbers given there.

Error message extract from SAP system. Copyright SAP SE.

AD259 - Details

• The SAP error message AD259, which states "This number of key fields is not permitted with generic buffering," typically occurs when there is an attempt to use generic buffering on a database table that has an inappropriate number of key fields defined for that buffering type.
  
  Cause:
  
  Key Field Limitation: Generic buffering in SAP allows for the buffering of data based on a limited number of key fields. If a table has more key fields than the allowed limit for generic buffering, this error will be triggered.
  Buffering Configuration: The table may be configured for generic buffering, but the number of key fields exceeds the permissible limit set by SAP.
  
  
  Solution:
  
  Check Table Definition: Review the definition of the table in question. You can do this using transaction SE11 (Data Dictionary). Look at the number of key fields defined for the table.
  Adjust Buffering Settings: If the table has too many key fields for generic buffering,