The person being invited to the workspace or repository did not receive the email invitation.

[미디어토마토대표계정]

We sent an invitation to the user, but they did not receive the email.
Please confirm whether the invitation was successfully sent from our side and let us know if there's anything we need to check or adjust.

[Ben]

G'day 미디어토마토대표계정! 

Welcome to the Bitbucket Cloud community!

I have checked the user's email address and can see that the user has disabled product notifications (which includes invitations)—hence why they've not been able to receive these.

To resolve this:

• In order to receive invitations again, the user will need to navigate to their Atlassian account’s email preference center and tick the Product invitations option:
  

• After this is completed, you will need to cancel the existing invitation in the workspace, and invite the user again to trigger a new email.

Please let me know how this goes.

Cheers!

- Ben (Bitbucket Cloud Support)