Retry POST /users

Here is our testing scenario

We add a user via POST /users
Zoom send an email with an invitation.
The invitation remains ignored.
Zoom after about 20h sent an email with an invitation again.
We do not know what happens next.

Repeating POST /users does not change anything, Zoom does not resend the invitation.

After how long can we POST /users that the invitation can be sent again?