Redirection from old ZOHO to Commerce Zoho

Redirection from old ZOHO to Commerce Zoho

Old site is at sites.zoho.com new site is at commerce.zoho.com and is published. There are product pages that I want to redirect from sites.zoho.com new site is at commerce.zoho.com . 

Can anybody help me ad let me know how it can be done. 

For example 

I want to redirect 
https://www.rev1tech.com/3d-scanner-scantech  to  https://www.rev1tech.com/3d-scanners/scantech-3d-scanners

But it s not redirecting