Hello @KristaM80 ,
That's not really how replacing files works, whether it's a matter of linking or uploading to replace an existing document. If you need assistance replacing an uploaded Library document in your account, please call our general support so they can confirm security permissions live and get it updated. If it's a matter of replacing a link (since you provided an external link for the new doc), you'd need to send a whole new email to replace that, as embedded elements of already sent emails can't be changed in the recipients' inboxes.
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