Marketing cloud visitor ID with non persistent cookies

[EstebanOR]

Hi,

We're currently working with a new device which supports cookies but it does not persist them, so when user leaves web/app and relaunch it 30 minutes later, previous cookies have been already deleted.
In this particular case (non persistent cookies):
- does it make sense to use marketing cloud visitor id (mid?) or it would be better to use visitorID (vid)?

- is it possible to override MID? I could save that value in localStorage the first time the app/webb is launched and reuse it next time

[ChetanyaJain · Accepted solution]

@EstebanOR see if this triggers a different way to deal with the situation you are in - https://youtu.be/DsW3J0aehzU i.e. using first-party id.

Do review and let me know your thoughts so that we can discuss further if required.