post
https://admin.{instance}.sectigo.com/api/smime/v2/renew/serial/
Submission of a request for a new Client certificate using the CSR and parameters of the initial Client certificate. The initial certificate is defined by its serial number.
Submission of a request for a new Client certificate using the CSR and parameters of the initial Client certificate. The initial certificate is defined by its serial number.
Try It! to start a request and see the response here!