Formula to lookup a value based on start and end date

kalthami

Hi All,

I need your support on this case.

I have a project to improve the current sales report layout and I need to extract the Vendor Support data for each item depend on the sales records, and the start and end date for this vendor support.

Here is an example:

Below is the table where I want to have the formula to collect the support for each sales record.

Below is the vendor support table (Note items may be duplicate for example we might have a support for Item A between Jan and Feb, and also we might have another support for Item A between June and July)

Paul Newcome

You would use somethign along the lines of:

=INDEX(COLLECT({Support}, {Item Code}, @cell = [item_code]@row, {Start Date}, @cell = MAX(COLLECT({Start Date}, {Start Date}, @cell <= Date@row))), 1)