A member purchased a one-time course from my group which had a link to book a one-time call with me. How would I remove their access so that they can't book another call?

I just had a one-time purchase from my free skool group happen today. First of many hopefully. Sharing this to give hope to those who don't know if it's possible. BTW it didn't notify me that I made a sale. Is this normal? I didn't even know that I made a sale until the guy messaged me

Is there any way to edit an existing post to make is a "Complete Action" post or do I have to delete it and create a new post?

I'm tracking conversion rate manually with a meta pixel and the group metrics for my free group. What's a good about page conversion rate to shoot for?

What's the best way to ensure your members show up for their onboarding calls?