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> Why isn't it enough to check if the aggregate already exists? Aggregates are checked in Axon using the aggregate root ID. For instance, in current business processes such as...

> Is initiating the approval not done via a command? This is accomplished through commands. In our business model, an individual in a specific unit can only initiate one approval...

> Similar to what is suggested here https://www.axoniq.io/blog/2020set-based-consistency-validation you can always introduce strongly consistent projections in the write model as well via subscribing event processors and use these during business...