How can I access self-submit in the Flex app? October 27, 2022 22:56 Updated Open the Flex app, go to the Schedule tab, open the Service issue warning, and follow the instructions from there. Related articles Do I need to self-submit this month if I want to use Flex? What does “self-submit” mean? When do I have to self-submit my rent payment by? Are there additional costs if I self-submit my rent payment? How much should I pay when I self-submit my rent payment? Comments 0 comments Please sign in to leave a comment.