We have carefully analyzed your request and would like to say that there might be numerous reasons why you see fewer impressions than we send you. : d9 C2 ?5 k) q# D% A9 `- W
But here is the list of main reasons which can cause a high discrepancy: % s* h `9 [; x3 E3 `/ n; w- there may be a number of zones causing the discrepancy, so we recommend to you to check by zones and exclude such if any 3 k; z6 ]* x. B+ } }6 ^- the more redirects are in the url the more chances it will cause the discrepancy 0 {1 }6 w. E0 }* T8 g1 B- if you use complex targeting, your tracker might do not recognize some of (opposite to our data), so it might cause the discrepancy too. Consider running a small test selecting just a GEO or GEO+platfom and check how it performs discrepancy wise. 4 v" o* J3 A. a3 k5 U! g: Z% J3 f * ^' j) m8 l- v3 n/ H为什么我感觉官方的解释很敷衍