Another part that is often not very well engaged are suppliers.
When it comes to scope 3 it’s super hard and costly to get a clear view of all your supply chain. We often end up in a cat and mouse game where suppliers tried to hide their issues until they blow up.
I’ve found that using collaborative tools and negotiating win-win partnership with at least your key suppliers can pay off (e.g audit your process and facilities once per year and share with us your results + work together on how to fix your non compliances and we will increase our order or change our billing conditions…)