Push from onsite self-hosted gitlab to saas gitlab w/ okta

tl;dr: is it possible to push mirror from onsite gitlab to saml/sso saas gitlab? if so, how?

we have a self-hosted onsite gitlab instance and we are in the process of bringing up a saas instance. the self-hosted is going to stay around as it’s not in scope for the push to saas, however, i’m wanting to take advantage of having external resources available by mirroring several projects. before we enabled sso this worked fine but now it’s not.

is it possible to push mirror projects from self-hosted to saas gitlab when using saml (okta)?