Give temporary access to a lower tier

I have a tier 4 level that people can buy. I have another tier 2. Bother are separate memberships for different courses.

I want Tier 4 to access Tier 2 temporarily for one year (365 days) and then lose access.

How do I go about doing that?

Maybe with the s2Drip shortcode?

Otherwise you’ll need a bit of PHP conditional or a code snippet to customize that…