Storage DRS not moving vSphere Replication replicas

Hi, It seems that Storage DRS isn't detecting the vR replicas on the target site. I have an alarm of datastore usage that is above 85% and SDRS does nothing. I'm using vR 6.1 and replications are working as normal. In the docs is said to "register the Sphere Replication appliance with the SSO service to enable the communication between Storage DRS and the Sphere Replication Management server" but I've already done that. Any help appreciated..