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Level 6

Hello,

simple naive question: is campaign module involved?

If yes, it can be an issue of implementation related to operationMgt: by default, you can have 50 paralled activities related to operations (workflow operation / deliveries in operation).

operationMgt manages the queue: if the 50 paralled activities are taken, it waits for a / some release(s).

 

This is why you should not use for example continuous deliveries inside operation as it hardly release the token