The Magic Link goes through all product offers in order of merchant priority and selects the first working, enabled, monetized offer. You can specify your merchant priorities on the Settings page.
In the previous image, Amazon is the highest-priority merchant, and Target is the lowest-priority merchant. Suppose a product has offers from all four of these merchants.
In this example, the Magic Link will prefer the Amazon offer. However, if the Amazon offer were no longer working (i.e., the Amazon offer link were broken), the Magic Link would skip it. Since the Mystic Labs offer is unmonetized—that is, a Mystic Labs partnership hasn’t been configured within the Organic platform—the Magic Link would skip this offer, too, and continue to the Walmart offer. However, the Walmart offer has been disabled, so the Magic Link would move on and ultimately redirect the user to Target.
If there are no available monetized links, the Magic Link will select the highest-priority unmonetized link. (This could be a non-affiliate link directly to the merchant’s product page, for instance.) If there are no working links at all, then the Magic Link, too, will break.
Note that the Magic Link will never route the user to an offer that you have disabled.