# Certificate parameter is required when updating an existing certificate — please reset cert state

**URL:** <https://answers.netlify.com/t/certificate-parameter-is-required-when-updating-an-existing-certificate-please-reset-cert-state/163641>\
**Category:** Support\
**Tags:** netlify-dns-https-ssl\
**Created:** [June 12, 2026, 3:12am UTC](https://answers.netlify.com/t/certificate-parameter-is-required-when-updating-an-existing-certificate-please-reset-cert-state/163641 "2026-06-12T03:12:44Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Rickbob](https://avatars.discourse-cdn.com/v4/letter/r/a4c791/32.png) [@Rickbob](https://answers.netlify.com/u/Rickbob)\
**Post date:** [June 12, 2026, 3:12am UTC](https://answers.netlify.com/t/certificate-parameter-is-required-when-updating-an-existing-certificate-please-reset-cert-state/163641/1 "2026-06-12T03:12:44Z")

</div>

DNS verification is successful for my custom domain, but SSL provisioning fails with:  
**“Certificate parameter is required when updating an existing certificate”**

Could you please reset/clear the certificate state and reprovision Let’s Encrypt for my domain?

- **Site name:** `cool-capybara-be1b69` (on `.netlify.app`)

- **Custom domain:** `northstarmaplesupply.com`

- **DNS status:** Both `@` A record (`75.2.60.5`) and `www` CNAME (`cool-capybara-be1b69.netlify.app`) are resolving correctly and verified

- **HTTP:** Site loads fine over plain HTTP — DNS is not the issue

Based on other forum threads with this same error, this appears to be a stale backend cert state requiring a manual reset on your end. Thank you!