What mode is needed to switch to live? Leroy Esterhuizen August 13, 2021 07:33 Updated Follow Mode 1 is required when switching to live, Mode 0 is for testing purposes only. Related articles Which application ID should I use for 1 Click? I'm receiving an error "Invalid Gateway ID" in test mode, what can I do? Is there a message I can display to reassure my customers that their transaction will be secure? Where would I find the required FICA documentation? Comments 0 comments Please sign in to leave a comment.