Insert an ad or any content in the WooCommerce archive

The insertion mainly depends on the theme used – in many cases such insertions may break the page layout. Your theme (or WooCommerce ?) uses HTML list for products so you need to insert identical <li> elemets.

Try to use this approach (make sure you use No wrapping alignment as you are inserting li elements):
https://adinserter.pro/documentation/insertion-before-inside-after-html-element

For insertion on WooCommerce pages check also this page:
https://adinserter.pro/faq/how-to-disable-ads-on-woocommerce-product-pages

Thanks for getting back to me but thats all way to complicated. Will have to look for something more plug and play

OK. The best would be that the theme or plugin that generates the product page, provides options to insert ads between products.