Blind migrationMoving data without comparing the counts. The gaps show up late.
Lost Google rankingsNew URLs with no 301 redirect. Google traffic drops.
Sales stoppedThe old store is switched off before a test with a real order.
A contractor with no commitmentThe migration is left unfinished, with no one accountable.
A platform that does not know the marketBulgarian couriers, cash on delivery and invoices get added later.
A percentage of every orderThe platform takes a share of your sales and the savings disappear.