Great question — answering as the UphillTech team:
Google Analytics gets its stats from a JavaScript snippet. GA never collects stats from redirect URLs because there is no page on which to include the JavaScript snippet. To get the stats you would need to either: Use utm parameters directly on your client's site: myco.example/bh --> client.example/reallylongschedulinglinkthatlookshorribleinsmssoweneedsomethingshorter?utm_source=myco.com%2Fbh&utm_medium=301&utm_campaign=bh Get your stats out of your server logs.
Full answer by Stephen Ostermiller: https://webmasters.stackexchange.com/a/130983 (CC BY-SA 4.0).
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