Hello Antti L2,
Thank you for your question. When running reports or viewing data in the Bing Ads User Interface, the data will match the selected date range. For example, when running a report for "this month" it will run from the first of the month to the current date within the month. If this were run today it would be 4-1 through 4-13. When selecting a date to end on 4-5, the report should only run for data until 4-5. Please feel free to review the following links for additional details.
How can I compare performance by date ranges?
See how your campaigns are performing with reports
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