I had an '18 Outlaw 29H on a '17 E-450 and if I recall I did not have a fob for the door locks.
However, I followed a procedure in the manual so I could program the chip myself using the ECM to add a third spare key. It can be a little different with each vehicle type so check your manual or YouTube.
Sometimes it requires having two keys to start but there are procedures for only having one key. It is easier and cheaper than a dealer or locksmith.
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