A difference in figures between your advertising platform and Thank-You Analytics may be due to campaigns that are not synchronized in the connectors. This means that we have not found a matching key between the campaigns coming up in the connector and those bringing traffic to your site. You therefore need to check that all the utm have been added to the campaigns. This may be a campaign that is not yet or is no longer bringing traffic to your site. You can also manually synchronise these campaigns with those in the acquisition tab.