Add Dates to One Product
If you have existing products with no dates, simply click "Edit Product" and add dates in the date field one by one.
Add Dates to Multiple Products in Bulk
You can also bulk add dates to products for a faster solution. 
The tool will allow you to add the same date to all products selected, or add different dates to each individual product. To add dates to each individual product, click "Set Individual Activity Dates". 
Once completed, click "Update All Products" at the bottom, and your products will be updated with the dates you input. This is a great tool to save you time when adding dates to products, helping to avoid opening and editing each individual product to add dates.