- Money transfers between banking systems - if you lose these then you are losing money.
- Stock/inventory updates - if you lose those then your inventory management is not reflecting the real situation.
- Order messages: if you lose an order then - well - you're losing business.
- Scheduling messages that trigger expensive processes: if these get lost (or worse, sent inappropriately or twice) then you risk a lot of useless process work.
In all of the above cases, you can't afford relying on an unsupported open source platform so I am sure you will want all the critical bug fixes included in ExtremeTransactions.