When copy a past event by selecting the method B in Copy Past Event, if the error message "An unknown error prevented the event from being fully copied" occurs, the possible reason is that the Public capacity number is set to be larger than the Capacity number. Below are steps to fix the issue:
Click Restrictions and settings, ensure the Public capacity number is set to be equal to or less than the Capacity number
Click Registration categories step, click Edit next to all Category restrictions / Price restrictions, ensure the Public capacity number is set to be equal to or less than the Capacity number
After that, you can try to copy the event again. If the error still exists, visit Contact Usform to connect with support via Phone Call, Chat Online and Email.
