Syncing imported contact into iOS devices

Syncing imported contact into iOS devices

Hi, I am a new user of Zoho mail and the issue I am having is that if I import all my contacts into Zoho Contacts from a .csv file, they never sync into my iPhone. I have "hidden" all the contacts on my iPhone except for the Zoho contacts. If I add a new contact it syncs over but none of my imported contacts will. I have even tried to modify a contact slightly and then save it to see if a change and save will force it to sync but not luck.

Your assistance is appreciated. Unless I can get my contacts over without recreating them all from scratch I am not sure I can continue to migrate over.

Thank you!

John J Watson Jr