When is the customer charged each month?
Does it occur on the day they make their original purchase each month?
Will the customer be billed on the same date that the first order was placed?
It depends on the subscription plan the customer subscribes to.
If the plan is monthly, yes they would get charged on the same day each month. Example: If they buy on the 15th of this month, they’ll be charged on the 15th of next month.
If the plan is every 30 days, then the days would differ because of the different amount of days in each month.
If you have a quarterly subscription plan, customers will be charged on the same day every quarter.
If you have a yearly subscription plan, customers will be charged on the same day every year.