HiThe answer should be focus on CORs policy updateBest practice will be white list all the domain the application/web is using (its good for content security) https://developer.mozilla.org/en-US/docs/Web/HTTP/CORSAccess-Control-Allow-Origin: https://foo.example

1. Make sure the your certificate key fingerprint is added  Example node.js for generating the JWT 'use strict'; const fs = require('fs'); const jwt = require('jsonwebtoken'); var expiry = Date.now() + 86400000 ; var jwtPayload = { "exp":expiry, "iss":"<org id>", "sub":"<email>", ...

Few things to remember when you use DCS API 1. Make sure all your signal are mapped to a trait (it can takes up to 4hr to replicate into the AAM) before you send any data Via the DCS API2. We are update traits customer data via DCS so the format for customer tracking id as follow d_cid=<datasource i...

1. check cookie domain settings for visitor id service    var visitor = Visitor.getInstance("xxx@AdobeOrg", {        trackingServer: <trackingServer>, // same as s.trackingServer        trackingServerSecure: <trackingServerSecure>, // same as s.trackingServerSecure        marketingCloudServer: <mark...

Have you checked if redirect page retaining all the parameters (or all parameter is removed when landed to the destination)? ThanksAbu

I believe this diagram will help you understand the end to end process ThanksAbu

HiTo make a4t works:- In web you have to pass the SDID from target to Analytics payload - in Mobile Apps SDK you have to collect "tnta" value from target and pass this to Analytics IOS & Android some sample code can be found here https://shafi.com.au/code/2019/09/05/adobe-target-api-and-a4t.html

You are correctAnalytics data captured on the page and ready for you in AAM in next page for personalizationSo you have to call target every time to get the latest personalization content (regardless of SPA or not)  

if you are using the impression numbers from Target reporting you will see the inflated numbers because of the followingTarget side of the reporting does not relay if the content is displayed on not its reports on content is deliveredexample if your campaigns have overlaps with multiple campaigns it...

Target works on single priority levels and you can not change the priority on runtimeas you mention you already have Pega and NBA you should use that for refining audience segmentationOther way to look into is adobe campaign where campaign priority can be chained and changes on runtime Adobe Campaig...