Yes, you can use sales data as a short-term proxy if purchase data is unavailable. However, purchase data is preferred because it directly reflects what your business has bought and consumed, making it more accurate for emissions reporting.
If you choose to use sales data, it must be sent to the My Emissions team instead of being uploaded through the platform. This is because we need to make reasonable assumptions about waste and other factors. We recommend working towards collecting and using purchase data for long-term accuracy.