You mentioned iOS tracking. Is this for a mobile app or mobile/responsive website?

Verify that the Adobe organisation ID that is specified in your ECID code is correct across all domains. Also, when you say "other sections of mysite", are those other sections still under the same parent domain as mysite? ECID is ultimately cookie-based, and cookies are determined by the hostname.

Your current segment as it is won't work 100%. The reason is that you're using a Visit container that encompasses your Cart Additions and Product Name. That will match this scenario as well: Hit 1: Added product X to cart. --> Cart Addition exists. Hit 2: Viewed product "specific product name". --> ...

@Jennifer_Dungan wrote: Anyone who says you can only use eVars on events (which seemed to be an old school belief - which didn't seemed to be based on any logic) is misinformed. Actually, it's not misinformation but outdated information. Before Analysis Workspace was introduced, there was really no...

You would need to build a calculated metric with a segment to get that Unique Visitors number. Calculated metric:   (segment Visitor-scope: prop1 exists)   | Unique Visitors

I haven't verified this myself, but I believe it's the time between 12:00am to 11:59pm for the same calendar day based on your report suite's timezone. That's the general definition that is used with other parts of AA, particularly with the date range components.

Since you're developing an application/integration that works with Adobe's products, you can also consider applying as an Adobe Exchange Partner. See https://partners.adobe.com/exchangeprogram/experiencecloud.html Certain partnership levels come with sandboxes.

This is an interesting problem that I haven't encountered before. I doubt that it has anything to do with your Web SDK action. Can you share the URL of a page where this error occurs?

@Jennifer_Dungan has described what repurposing an eVar variable is. As for how it is done, besides what she's described, another way is not very obvious. By default, AA deletes data that is more than 2 years old. So if you have an old eVar that has not had any data collected in it in the last 2 yea...

How are you sharing? Do you get any error when trying to share?