Do you integrate with Royal Mail Click & Drop?

We do, however, Royal Mail do not have an API for Click & Drop so this is not a direct integration. Instead, we have a ready-formatted CSV file that can be added to your account to allow you to simply export orders from Expandly and import to your C&D account to print the labels from there. The CSV has been made specifically to work with Click & Drop so there is no re-typing or amendments needed once the orders import to C&D.