There’s an updated (May 2021) Dynamics 365 Licensing Guide. The first change of note is the amending of the term “entity” to “table” throughout, in line with the updating of some terminology in Dataverse – find details here: https://bit.ly/2Rls5WM. And the second change is the introduction of Electronic Invoicing transactions – see page 32. 100 transactions per tenant are included with Commerce, Finance, Project Operations, and Supply Chain Management licences, and there’s an Add-on available which adds an additional 1,000 transactions per month. Note that transactions do not roll over between months and customers must license for peak capacity.
Find this updated guide here: https://bit.ly/2Rrn1A8.