We have now improved the selection of extensions in Charges section from Multibilling window where when any extension is now processed or billed, they will no longer appear in this selection since charges can no longer be assigned to the extension :

Extensions will no longear appear if processed or billed :

We hope this improves your Cirrus experience. Remember to share this information and ask for help if you need it.

Date: July 15th, 2024.