Add custom fonts and share with Users (suppliers) outside of organisation

We would like to add custom fonts to Adobe fonts and share them with our employees. These instructions suggest this is possible, but can we also give external Users (suppliers) access?
Does step 3 in this link enable this? https://helpx.adobe.com/uk/enterprise/using/custom-fonts.html?x-product=Helpx%2F1.0.0&x-product-location=Search%3AForums%3Alink%2F3.6.2