I am having difficulty in creating a Parameter that will allow the user to enter more than one entry (for example: to be able to run one query that will return data from multiple months that you choose, like 1, 3, and 7)

The 'In' in the criteria will work if the data is hard-coded, but I want to be able to have one prompt that will allow multiple months be entered at the same time.

Has anyone had this problem and how did you fix it?