E-mail merge fields

E-mail merge fields

Can someone help me? struggling to work out why the below e-mail inst brining through the correct fields from the CRM...

Hi ${Contacts.First Name},

I have now processed all changes requested and your shop is now live.

Your shop link is: https://teamwear.kalibazar.co.uk/${Opportunities.Slug}

Please ensure everyone is informed that the shop is now live and update any links on your website.

I am really pleased with how the shop looks and I hope that you do to, If there is anything you need with regards to adding or removing garments, logos or any sort of customisation please do not hesitate to get in touch with a member of the team on shops@kalibazar.co.uk

Best Regards
${Users.First Name} - THIS ONE WORKS!