How to generate AuthToken for abandoned cart API calls?

Hi there,

I am referring to this document:

https://help.zoho.com/portal/en/kb/marketinghub/user-guide/web-assistant/websites/articles/purchase-abandonment-for-website#Setting_up_cart_abandonment

The calls include an AuthToken. Eg:

setItem(json,AuthToken)

How is this AuthToken generated? There doesn't seem to be a way to generate one using the API (that generates an AccessToken). I only see references to AuthToken as part of an older API.

I have also found references to the call without an AuthToken being used at all (in attached PDF).

So what is the current requirement?

Thanks