How to assign cells from different columns based on their values

[tagoge]

Hi i have big problem. I tried many times but i dont know how to prepare vba code which help me to to assign value when is the same from one column to another.it means that

Date	Shipment date	Product index
01/01/2018	01/01/2018	W10-1
02/01/2018	01/01/2018	W10-2
03/01/2018	02/01/2018	W10-1
and so on

<tbody>
</tbody>

after

Date	Shipment date	Product index
01/01/2018	01/01/2018	W10-1
	01/01/2018	W10-2
01/02/2018	01/02/2018	W10-1
and so on	and so on	and so on

<tbody>
</tbody>

Thank you

 

[Joe4]

Welcome to the Board!

I think you need to explain the logic to us. It is not apparent from your images without any explanation.