How To Fix AD529 - Buffering not allowed.(-> No. of fields in gen. key must be 0)

AD529 - Overview

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 529

• Message text: Buffering not allowed.(-> No. of fields in gen. key must be 0)

What causes this issue?

Buffering of this table is not allowed. Despite this fact, a key field
number not equal to 0 is entered in the technical settings for the
table. A key field number should only be entered if a table is to be
buffered generically.

System Response

An error message is output.

How to fix this error?

Set the key field number in the technical settings to 0.
To do this, select the option <LS>Technical settings</> in the
<LS>Goto</> menu of the table maintenance function. In the next screen,
press the pushbutton <LS>Chnge key fld no.</> and delete the key field
number entry in the displayed dialog box. Then, activate the technical
settings.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AD529 - Buffering not allowed.(-> No. of fields in gen. key must be 0) ?

  The SAP error message AD529 ("Buffering not allowed. (-> No. of fields in gen. key must be 0)") typically occurs when there is an attempt to buffer a database table that has a general key (i.e., a key that consists of fields other than the primary key) defined. In SAP, buffering is a performance optimization technique that allows frequently accessed data to be stored in memory, reducing the need for database access.
  
  Cause:
  
  General Key Definition: The table in question has a general key defined, which means it has fields that are not part of the primary key. SAP does not allow buffering for tables with general keys because it can lead to inconsistencies in data.
  Table Configuration: The configuration of the table in the Data Dictionary (SE11) may have been set to allow buffering, but the presence of a general key prevents this.
  
  
  Solution:
  
  Check Table Definition: Go to transaction SE11 and check the