Attached is a sample sheet I created.

I need to evaluate only on the days (15th thru End-of-Month) based on the previous month from whenever the file was created.

For instance:
If the file was created on March, I need the Condition based the previous month (February) for the 15th thru End-of-Month.
If the file was created on April, I need the Condition based the previous month (March) for the 15th thru End-of-Month.
If the file was created on May, I need the Condition based the previous month (April) for the 15th thru End-of-Month.
...and so on.

Attached Files

Conditional Formatting between 15th and End-of-Previous Month.xlsx (11.2 KB, 12 views)