How long do you have to wait before retaking an exam? Brian Dressler September 20, 2018 23:29 Updated These times are subject to change and you can retake an exam up to a maximum of 5 times. Second Registration after 7 day(s), Third Registration after 14 day(s) Fourth Registration after 21 day(s) Fifth Registration after 30 day(s) Related articles I failed the Magento 2 Certified Professional Developer exam. What do I need to do next? Can I find out what answers I got wrong on the exam? What do I do if I do not pass the exam? Online Proctored Exam Troubleshooting Tips How do I change the company name on my profile ID?