We need to verify our domain through a txt record added to our DNS

Hi!
We need to verify our domain through a txt record added to our DNS.
We plan to have different domains like “{companyName}.productName.com”, where
{companyName} - dynamic data.
productName - static data.

What should be our next steps?

Hello,

Thank you for reaching out in relation to Our Domain Validation process, the next steps will be sent to you via DM. Please refer to our domain validation resource: Domain Validation Explanation for any further questions you may have about the process.

Thank you.