relate Zoho users with events imported from other system

relate Zoho users with events imported from other system


I made a mistake and didn't import users list with my own IDs but created them manually.
I need to relate users with events from other system..
 Can I relate this users with events that I am going to import?
During import events I tried to use IDs (example: 82686000000035003) that I got from exporting users but this IDs doesn't work.
I don't see possibility to remove users - email ids I reserved and I can't import from file with my IDs.
Best regards, p