For the Community, go to My Settings >> Personal >> Close Account.
For Dynatrace SaaS, I would contact the support for deleting your account overall, but what you can do is deleting your Dynatrace account from all the SaaS accounts which you have access to - if you are admin. Click on an account, go to People, find your own account and click on the three dots on the right and then delete user. Repeat it for all the accounts to which you have access.
A Dynatrace Professional nerd working for Conclusion Xforce
