The only condition is that no more than

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When Direct receives the data, you will see that the "Offline conversion tracking" option has become active. Statistics collection will begin from the moment of activation, so the number of conversions before and after may differ greatly, often several times. At the same time, old conversions from the CSV file are not linked to old purchases from Metrica. This fact should be taken into account when you upload the document for the first time.

When you subsequently update conversion nepal telegram database data, this strict rule no longer applies. In the future, the system can link the updated information with the old Metrica statistics. 21 days should pass between visiting the site and making a purchase.

Conversion data can be changed within 90 days after a user visited the site. Let's say a person visited an online store on June 15 and looked for a chainsaw, bought it at an offline store on June 30, but returned it due to a defect on August 15. In this case, you can change the order status so that statistics are collected correctly.