This example will show you how to implement a product that will charge a client once for access.
From your aMember Control Panel select 'Manage Products' then 'New Product'
Complete your normal details, Title, Description etc and in the billing plan input something like;
In the example above we have set the initial payment with the 'lifetime' option, no additional billings are to be charged to the client.
In the above example you will see that after the payment your client would receive one years access, after which access would be terminated.
One Time Payment Option
The two examples provided are only samples you can set the access period to any value, days, months, years as you require. When that period expires your client's access is terminated. Naturally depending on your product settings they would be able to buy another access period. This allows you to say 'no automatic renewals' or something similar.
The yearly example could be "Pay $75 for one year access, no automatic renewal".
By default aMember generate billing terms text automatically based on billing plan option. In case you do not like the automatically generated text you can specify it explicitly using the 'Terms Text'. aMember will use your text instead of auto generated terms on signup from in this case.
When all set click the 'Save' button