Drop in traffic performance since migrating from Magento to Shopify.

[Selina333]

I've seen a signficant drop in traffic and revenue performance for 2 websites that migrated from visualsoft & magento to shopify.

We added in 301 re-directs, retained the Shopping IDs for PPC and did everything required to successfully migrate a website. 

Cross checked the tracking in analytics with the backend to ensure it is aligned.

Our ads don't serve the same visibility despite everything staying the same. This is down on all channels too.

Has anyone had a similar issue? I'm currently running out of why it's dropped and need support please.