Renewing MDM certificate

I will need to renew my MDM certificate with Twocanoes in November. I’m not very familiar with the process. could you write up a “how to” on this? also, I’m using an SSL cert for my MDM cert with custom domain. Will I have to rebuild the CSR cert etc all over?

You will receive a notification 10 days beforehand to renew. You can do it ahead of time by following the same process as getting the original MDM push certificate, but selecting the renewal option when submitting to apple.

tim