Hi @Mike_Butterworth and thanks for reaching out!
As it stands, our calendar syncs only one way (Asana calendar > personal calendar). However this is a popular request in the Forum, I would highly encourage you to add your vote to this thread: Real time, two ways Calendar integration
If you’re using Gmail, I would also recommend checking out this third-party integration: https://office.reddiapps.com/processes/asana/googlecalendar.aspx @Maggie_Reddi should be able to help if you have any questions 