At a glance
| Provider | Shopify |
|---|---|
| Category | Functional |
| Consent required? | Yes |
| Typical domain | Varies (first-party) |
Do you need consent for master_device_id?
Yes. master_device_id is a "Functional" cookie, so it is not strictly necessary. Under the ePrivacy Directive (2002/58/EC) and Romania's Law 506/2004, you must obtain the visitor's explicit consent before setting it.
This is general guidance, not legal advice — always verify with a lawyer.
How FewCookies handles this cookie
FewCookies recognises master_device_id from our database of 1,300+ known cookies and classifies it automatically as "Functional". The free check tells you whether this cookie is detected on your site and whether your banner handles it correctly — an instant, surface-level check, no account needed.
Frequently asked questions
Do you need consent for the master_device_id cookie?
Yes. master_device_id is a "Functional" cookie, so it is not strictly necessary. Under the ePrivacy Directive (2002/58/EC) and Romania's Law 506/2004, you must obtain the visitor's explicit consent before setting it.
What does the master_device_id cookie do?
Shopify cookie that remembers settings and preferences to improve the experience.
Who sets the master_device_id cookie?
The master_device_id cookie is associated with Shopify and is classified as functional.