Creating plan product

What data should I add to the wp_stripe_checkout_v3 shortcode for a plan product? Do I use the plan id as the sku code, like the below example?
[wp_stripe_checkout_v3 sku=”prod_FmRdssbZmD9m1h”]

This could be a separate issue, the button appears on the page but appears to be inactive.

I’ve trawled the internet, but can find no examples of a plan product. I’d appreciate any hints or suggestions. Thanks.