Royal Mail will send you a digital certificate when you request your Shipping API details. Certificates last 12 months. After 12 months Royal Mail may contact you to ask if you would like to renew the certificate.
What Do I Need the Certificate For?
Shiptheory uses your certificate to make a secure connection to Royal Mail. When Royal Mail send you your certificate, please forward it to us. You do not need to do anything yourself with the certificate, once you have forwarded it to us we will take care of everything. If you used Shiptheory as your technical contact when requesting Shipping API details, we will already have your certificate, you do not need to do anything.
Do I Need To Renew My Certificate Each Year?
Yes. Certificates only last 12 months. If you renew your certificate, please forward your new certificate to us so that we can update it on our end.