How to adjust the frequency and duration of billing agreements


Hi everyone,

I am integrating amazon pay for our non-profit that offers one-time, monthly, and yearly donation plants.

I looked around and was not able to find how we could set the duration ( how long should the billing agreement continue) or the frequency ( how often should the buyer be charged ).

When I use the sandbox and hit the amazon api with GetBillingAgreementDetails, I see the TimePeriodEndDate which is only one month after TimeStartEndDate. I assume this is the time frame that the billingAgreement runs for, but I could not find a way to alter that period in the documentation.

Please help.

Thank you