If your support is garnished, keep making your payments through it. In order to switch to DComply, you and your co-parent need to be in agreement and will likely need to have the change ordered. Do not make payments via wage garnishments and also via DComply, wait to be sure that wages are no longer garnished.
If you’re not using DComply for child support, you might benefit from using it for managing shared parenting expenses and we have many parents that use DComply for shared expenses only.