How to filter customers/orders by a product in the their order?

[aesquenazi]

How would I go about creating a customization to search for orders/customers by a product in their order

[Moco_Insight]

You can use the Moco Insight extension to do this. Easy to install with a 14 day trial so you can play around with it to see if it suits.

[MageWorxTeam]

Hello @aesquenazi

You may check this Order Management Magento tool. It lets you add a column with products names to the Orders Grid, and then sort orders by a product.

Also you may use these 2 free extensions:

http://www.mageworx.com/products-ordered-by-customer-magento-extension.html

http://www.mageworx.com/product-orders-by-customers-magento-extension.html 

[Amasty]

Hello @aesquenazi

You can also check out this extension https://amasty.com/better-order-management.html

It will provide you with wide functionality for orders proccessing.