1 - Login to your Meraki MDM
2 - Select MDM Network -> then under the Organization menu under "Configure" select MDM
3. Once here select the Update/Renew Certificate button.
4. Download your CSR File. If you don't keep a clean house (or download folder) note the name and date of the file as it is very important. In my case it is "Meraki_Apple_CSR (4).csr"
5. Then click on the link for the Apple Push Certificate Portal and login with the ID you are going to use or using with the MDM. (It is the ID is tied to the CSR) so in this case mdmaccount@domain.ca. Don't forget that you will need your 2FA device to be able to login.
6. Select Renew on the Certificate you want to renew. Then upload the CSR; this is the file from step 4 - "Meraki_Apple_CSR (4).csr"
7. Then once done you will download your new Certificate to use with your MDM. Again make note of the name and date if you don't keep things tidy. In my case it is "MDM_ Meraki Inc._Certificate (1).pem"
8. Now go back to your meraki mdm and enter in the email address and upload the certificate we got from apple (MDM_ Meraki Inc._Certificate (1).pem)
9. Save the settings (this is usually on the bottom of the page or on the bottom right)
10. Now your certificate expiry should be from 1 year as shown below
You can view a youtube video of the process here
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