A task for letting Billing Department to issue invoice to client once the task with billing milestone has been completed. Please see below screenshot for an example of how this should be setup:

1. Create a subtask under the task with billing milestone

2. Put the corresponding payment term and payment amount in the Task Description. Set today's date for the task and assign to Elizabeth Robson. This is to notify Billing Department to issue the invoice on that day.

3. Notify @Finance Team of the task to ensure they receive this.