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

SAP Error Message - Details

• 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 the existing records in the database to ensure that the primary key you are trying to use does not already exist. You can do this by querying the database table.
  Modify the Primary Key: If a duplicate is found, you will need to either change the primary key value you are trying to insert or update or remove the existing record if it is no longer needed.
  Review Data Entry Procedures: Ensure that the process for entering or generating primary keys is robust and prevents duplicates. This may involve implementing checks or using sequences for generating unique keys.
  Data Migration Validation: If this error occurs during data migration, validate the data before migration to ensure that there are no duplicates in the primary key fields.
  Consult Documentation: Review SAP documentation or consult with your SAP administrator for specific guidelines related to the table or transaction you are working with.
  
  Related Information:
  
  Transaction Codes: Depending on where the error occurs, you may be using specific transaction codes (e.g., SE11 for Data Dictionary, SE80 for Object Navigator).
  Database Constraints: Understanding the constraints set on the database tables can help in diagnosing issues related to primary keys.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Debugging: If you have access to debugging tools, you can trace the execution to see where the error is being triggered.
  
  If you continue to experience issues after trying these solutions, it may be beneficial to reach out to your SAP support team for further assistance.