How To Fix AD321 - & (specify a primary key)

AD321 - Overview

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 321

• Message text: & (specify a primary key)

What causes this issue?

When defining table fields, you omitted to specify a primary key.

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?

Include one or more table fields by marking the key field in the
primary key in the field maintenance screen.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AD321 - & (specify a primary key) ?

  The SAP error message AD321 typically indicates an issue related to the assignment of a primary key in a database table or a data structure. This error can occur in various contexts, such as during data entry, data migration, or when executing certain transactions.
  Cause of Error AD321:
  
  Duplicate Primary Key: The most common cause of this error is that the primary key value you are trying to insert or update already exists in the database. Primary keys must be unique for each record in a table.
  Incorrect Data Entry: If the primary key is being generated or entered incorrectly, it may lead to conflicts with existing records.
  Data Migration Issues: During data migration, if the data being imported contains duplicate primary key values, this error can occur.
  
  Configuration Issues: Sometimes, the configuration of the database or the application may not allow for the proper handling of primary keys.
  
  Solution for Error AD321:
  
  Check for Duplicates: Verify