Why we always have to tie the contacts to locations in GTM?

Summary:

We need to do supplier solicitation at supplier level and for that we need to create a contact record (for supplier) in GTM without a location. And also we want to send a notification alert if the supplier contact record RPLS status changes to Failed or Requires Review. Tested this scenario but unable to get the status in alert notification.
We opened an SR but oracle representative said we need to have a location for the contact record to get the RPLS status in alert notification.

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