forms <> crm

forms <> crm

Hello,
I would like to create a form to request data, which then change data fields for existing contacts. I ll send it out fo existing contacts by mail in zoho crm.

Specifically, it means that our freelance employees can order merchandising material, but also upload a photo. (Image data field already exists).

How can I ensure the assignment contact <> form?

On my first attempts, the CRM status says: New Record - Record added - even if I enter an email that a contact already has.

Can you load photos directly into an image data field, or do photos from the form end up in the attachment?

Thanks for help!
greets