With Aloha Scheduling you can allow or disallow patients to CANCEL their appointments in the Scheduling App.
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To Allow or Disallow Cancelling in your EHR (Electronic Health Record) Software head to SCHEDULING tab > SETTINGS page. On this page you will see a button labeled CANCEL APPOINTMENTS with a toggle switch YES/NO. After you've set this to either YES or NO, scroll towards the bottom of the page and click "SAVE DEFAULTS."