Enterprise license question

Hello
we had purchased SonarQube cloud Enterprise License for 3M LOC and applied the Enterprise coupon. but why does the site say enterprise coupon applied, but organization hasn’t been upgraded. Do i need to press the Upgrade to Enterprise button, and it won’t impact any of the existing things and seamless?

For uograding to Enterprise plan on SonarCloud please refer to the docs, e.g. Setting up your enterprise