Should I use a singular form or a plural form before a clause starting with "for each"? [closed]

In this sentence, should I use the singular "due date" or the plural "due dates"?

Please let us know your earliest possible due dates for each product.

Each product should have only one due date. But as a whole, there should be several due dates as we have more than one product.


Solution 1:

Please let us know your earliest possible due dates for each product.

Since you say each product it should be possible due date even though multiple due dates for multiple products.

Each product has only one due date. Due dates mean each product has different due dates.