To increase sales we would like to show a block 'when buying this product you get gift X for free' on the productpage.

This needs to be selected per product. So: Product X add gift A. Product Y add Gift B.

This is a website as an example: https://www.cameranu.nl/nl/p3299334/canon-eos-r6-mark-ii-systeemcamera-body-zwart

They have added in the block next to product images saying 'Bij dit product ontvang je gratis'.

When for example we run a Black Friday Campaign we would like to show a free gift to increase sales.