idempotencyToken
Custom string that can be used to distinguish between calls to the CreateCertificateAuthority action. Idempotency tokens for CreateCertificateAuthority time out after five minutes. Therefore, if you call CreateCertificateAuthority multiple times with the same idempotency token within five minutes, Amazon Web Services Private CA recognizes that you are requesting only certificate authority and will issue only one. If you change the idempotency token for each call, Amazon Web Services Private CA recognizes that you are requesting multiple certificate authorities.