Go to User Settings and assign the 'Settings' access rights under the Administration.
Note: Only users with 'Settings' access rights can run the Contact Correction process.

Here, you can see the contacts along with their child contact and addresses.

Salesperson under the 'Sales & Purchase' tab.

Go to the contact configurations ==> 'Run Contacts Corrction'
Note: This option allows you to add or correct the salesperson for all the contacts.

This popup notification will appear if any contacts are found without a salesperson or with an incorrect salesperson.

You can see that the salesperson has been added or corrected successfully.

Select the contacts and click on the 'Contacts: Correct Salesperson & Sales Team' from the Action menu.
Note: This option allows you to add or correct the salesperson for the selected contacts only.

This popup notification will appear if any contacts are found without a salesperson or with an incorrect salesperson.

You can see that the salesperson has been added or corrected successfully.

This popup notification appears when no matching contacts are found, indicating that all contacts already have the correct salesperson assigned.