Error: What to do if you are receiving an "HTTP error 500" error? Simon Ware June 29, 2021 15:36 Updated ISO-8601 extended format [year-mm-dd] If you're getting an HTTP error 500, please check your date format is set in this format. Related articles. Related articles How does the eCompliance API work? eCompliance API with the Companies Module Setup: How to setup Single Sign On (SSO) with eCompliance? Comments 0 comments Article is closed for comments.