When running Sales + Dual Write connection using Global Address Book, each Qualify of Lead operationa automatically creates Contact For Party record. This should be an optional parameter in case you still want to keep the parent-Relation Account 1:N Contact in place, and only define for specific contacts to be synced to FO.

At the moment, this can be achieved by disabling Plugin "Microsoft.Dynamics.GABExtended.Plugins.LeadPostCreate" but there is no documentation available what this Plugin is doing in addition.

See Bug: 2506111420002912