Thanks Thierry,

I agree with Mark, an issue is likely in replication agreement definition. According to the error message it looks the consumer (centos 7) can not retrieve the replicaroot from the replication extop. A possibility is that the replication agreement (on alma 8) is missing 'nsDS5ReplicaRoot'.

the replication manager account was set up from the cockpit ui, replication as per the below, for the nsDS5ReplicaRoot, how would I go about adding this?