And so I've yet to see a migration - whether it's a new CRM, a new marketing platform, a new ecommerce platform - that happened on time. And the reason the companies are so cautious and the migrations don't happen on time is because it's not just switching one platform, which is challenging enough.
Probably the first one is exporting the critical historical data from universal analytics. You will not be able to pull UA data because the universal analytics API will just not be working.
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