I started to use myfitnesspal a couple of months ago. I wanted to see my report from the first ten days. However, i was not able to do so, it was either a choice of 7, 30, or 90 days. I could not chose the range of days i wanted to see. I suggest you have the reports where the consumer can choose the days they want the report for.

Depending on what type of report you're looking for you CAN view your food and exercise diary (and notes for both if you so choose) to whatever custom date range you like...
food > food diary
bottom left corner is "view full report (printable)
pick the date range you want to see and uncheck the particular items you don't wish to see (food diary, food notes, exercise diary, exercise notes)