The Replay MA was inspired by limitations encountered using the FIM MA …
The Instant Replay MA is a concept which leverages standard FIM Sync Engine features in a way not considered before to allow certain configuration options that are often not possible otherwise. Using what is essentially a read-only clone of any existing MA (including the FIM MA), any attribute can be contributed by the cloned MA in lieu of the original MA, thereby allowing for standard and extended options involving these attribute flows.
Note that the context of the reminder of this article, and the link below to the scripts and detailed instructions, is exclusively the FIM MA.
There are several scenarios here (e.g. group membership for migrated groups should become authoritative in the portal post migration) which are presently not achievable without configuring equal precedence. This is always problematic and would be good to avoid by introducing a 3rd authoritative source for group membership which can trump the others.
The FIM MA allows only direct 1-1 attribute flows between like object classes in the FIM Portal and the FIM Metaverse using fixed class schema. One scenario is where you wish to join on something other than the mv GUID – e.g. on the manager attribute so as to enable flow of the manager display name (redundantly) to the subordinate.
* Note: there is a documented alternative (advanced) for this scenario when working with Portal sync rules.
The FIM MA allows only direct 1-1 attribute flows, and as a result any attribute contributed by the FIM Portal cannot be included in a “manual precedence rule” when the FIM MA is the only means of sourcing this attribute from the FIM Portal