Geographies for serbia,morocco and Montenegro

Hello,

We are currently working on tax configuration using Vertex and have noticed that the geographies for Serbia, Morocco, and Montenegro are not offered by Vertex , locate .

Could you please advise on the recommended approach to load and maintain these geographies within Oracle ?

Is there a supported method or tool to import custom geographic data for countries not available in Vertex or locate ?

Can Oracle provide standard geography files or guidelines for Serbia, Morocco, and Montenegro?

What are the best practices for maintaining these geographies?

Thank you in advance for your guidance!