Changing Intervals and Amounts for a recurring billing customer

[markman1]

I need to automatically change the interval and the amount for an existing ARB customer.  I have customers changing from $250 per year (annual payments) to $40 per month.  Can that be set up through the API?  If so, can you guide me as to where I might find documentation?

Thanks

Mark

[RaynorC1emen7]

Can't change from annual to monthly. For the documentation at  http://developer.authorize.net/api/arb/

The subscription interval information (subscription.paymentSchedule.interval.length
and subscription.paymentSchedule.interval.unit) may not be updated.

Look like you would have to create new arb.