I'm sorry, I have no idea how to tie things into outlook, I don't use outlook except at work because I have to. If you can generate for of those waste logs then this calendar will work for those. I designed the calendar to work for a list from any source with the data you had in your waste log list. It is possible that on a slower machine the calendar will not work. To make it work, it should ask you to find the linked workbook, which should always be open when using the calendar and the filename on the right should match the cell below it. If this continues to not work for you, please describe what is happening. I will see about integration with Outlook while I'm at work.