I have the same - a good body shop should be able to repair it for you without repainting the whole door as long as its not bad enough to have crept to the outer door skin -

I only have the rear inner door seam, hatch is clean - I am planning on getting it repaired in August along with some PDR work and have many more rust free years -

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2018 Ram 2500 6.7L Cummins 68RFE
19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed
2013 X5 35D (CEO's) - Born on 5/17/2013 -
82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards