Logs are stored in the Journey Step Event Schema. You can use query service to write some basic PSQL queries to get the timestamps of each event on a canvas.https://experienceleague.adobe.com/docs/journey-optimizer/using/reporting/reports/sharing-overview.html?lang=en SELECT _experience.journeyOrch...

Enrich is taking Table 1 data and enriching that set with Table 2 data. So all data is already in the system and just being mixed together. For instance table 1 is profiles, and table 2 is orders. With enrichments you can look at all profiles that have orders in the last 7 days.update, is literally ...

How are you measuring the 15min? Are you basing it on the UI only? What do you want to do with the data? What type of data is it? Events or Attributes?   https://experienceleague.adobe.com/docs/experience-platform/ingestion/streaming/overview.html?lang=en    

I've done this approach before and it worked. One thing to watch is the total amount of calls per second. I believe ACC can only handle 35 per second on the inbound module. So check your license and the tier you are hosted on. It is possible for Tech Ops to stand up more modules/servers to support t...

I believe there is a package from the ACX team. I think Support can install it. But you would view it in a web app.

All logs can be seen in the broadlogs tracking and recipient tables. https://experienceleague.adobe.com/docs/campaign-classic/using/sending-messages/tracking-messages/accessing-the-tracking-logs.html?lang=en   Not sure what you mean by "verified" or RCP Cloud. But in general all deliveries generate ...

Is there any current documentation of this anywhere?

Think of the Targeting Dimension as the table you have to use with that delivery type. https://experienceleague.adobe.com/docs/campaign-classic/using/sending-messages/using-delivery-templates/selecting-a-target-mapping.html?lang=en By default, delivery templates target Recipients. Their target mappi...

Check the Target Dimension on your delivery types. Could be that certain Delivery templates are configured for specific schemas.  https://experienceleague.adobe.com/docs/campaign-classic/using/configuring-campaign-classic/use-a-custom-recipient-table/target-mapping.html?lang=en  

Don't forget to schedule this workflow to run daily.