Opayo / Sagepay Protocol V4

I'm using Sagepay server and am working on having Oc2.0 work with Opayo / Sagepay V4 & Credential on file. Does anyone else have experience of this?

4 OC digits. Use an extension from the Marketplace rather than using the one originally delivered from the core for maintenance reasons. Alternatively, you can also create a new service request in the Commercial Support section of the forum to get this done as a custom job.