How does a controlled budget interact with a GL budget and encumbrance if the same is setup?

Summary:

Hi,

I have seen the account generator for budgetary control in TAB (Transaction account builder) in projects. What is the use of same?

When we create a controlled budget- what is the impact on encumbrance and the GL budget if the same is enabled? I have not seen any documentation which gives how the project budget and the GL budget interact with each other.

Thanks you

Atul