Pre-authorization Credit Card Auto-Cancel (Release) Upon Departure
Currently preauthorization holds expire after 7 days in Mews but no cancellation of hold is sent to credit card or bank. The credit card or bank determines when the authorization hold is released depending upon their own policies. If the property sends a cancel for preauthorization the system does send the release to the bank. Is there a way that when a guest checks out, Mews can send a cancel to release the preauthorization hold.

Happy to share that we are currently working on enabling you this functionality. With all automatically created authorizations as a part of a rate group configuration, we will automatically cancel authorization on Mews' and bank's side 24h after guest departs.
Speak soon everyone!