Hello Clovis Chow,
Thank you for posting in Q&A forum.
For existing certificate, we cannot add additional AIA or CDP to existing certificate.
If you want to add additional CDP, you need to add additional CDP on CA Properties\Extension tab, and checkbox "Include in the CDP extension of issued certificates" for every CDP location.
For example:
After that, when CA issues new certificate to end entities, all these certificates will have additional AIA or CDP you just added.
Hope the information above is helpful.
If you have any question or concern, please feel free to let us know.
Best Regards,
Daisy Zhou
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