Dear Arun,Did you mean this?1) Create data element which returns DomainA and DomainB 2) In Settings  Name                                       Value  cookieDomain         =     %data element%I set this and get experience ID from DomainB too but they still don't match.

Dear Arun,Thank you for your advice. I checked raw data from Data Warehouse but different visitorID generated for each domain. I will use this raw data to DMP implementation so I really need to identify unique visitors across 2 different domains by one unique ID value. Is there any solution for this...

Dear Arun,I really appreciate your sincere support. I solved the cookieDomainPeriods problem and now I see "Y" in cookie supported on domain B too. But Domain A is generating mid, which is experience cloud id but Domain B is generating s_fid, which is fallback id.Now should I tag AppendVisitorIDsTo ...

I sent you a message.

I set the same tracking servers and experience id service.But I don't know what you mean by namespace for the tracking' and the cookiedomain set.

Yes I did place DTM code both in Domain A and Domain B.My problem is the server call from Domain B has no cookie value matching to the one from Domain A.

Dear all analytics professionals,I was trying my best to track cross-domain tracking but I guess I ran into a deadlock.Here is my case:I have a domain A. Several pages have iframed(?) form in the page sourcing from Domain B.In other words, a page has domain A url but its form contents are coming fro...