Error "External sharing is disabled for (organisation link)" is displayed when viewing a document

Issue

We have sent a client a Collaborate link for a document but when they click the link they encounter the error "That didn't work. External sharing is disabled for (organisation URL)."

Cause

External sharing has been disabled by the practice in Microsoft 365.

Resolution

Run the New Collaborate Status Check and click "Fix" for any identified errors. Refer to Checking your New Collaborate Status