Many customers may compare the number of Record Views shown on Counter 4 DB1 report to the total number of Citations / Abstracts on Summary Usage Report.

It may not match for several databases. The reason is that Summary usage report is supporting "Previews" of articles while they are not allowed to be included on Counter 4 DB1 report per Counter rules. So, the number of Record Views would be less than citation retrievals shown on Summary report.