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When you run an App by executing it directly (see 1.) or via the “Processes” tab (see 2.), you can allow submit only one subject at a time. This is great at first, when you are developing and testing your App, but once you find the optimal set of Apps, you would probably want to run it across many subjects and submitting them one by one is simply not a good option. So BL allows you to setup a series of submission rules called “pipeline rules” (see BL documentation).
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