How to get the funding updates (increase/decrease) in Awards in the contract?

Summary

How to get the funding updates (increase/decrease) in Awards does not reflect it in the contract created already.

Content

Hi All,

We have a requirement to make changes often in the funding for projects.
As I understand, the steps are to make the required  changes (decrease) in the budget first, and then in the funding amount in the award.
However, after making the change in the award funding amount, there is no option to submit it for Contract Approval.
And, though the funding amount has been changed as needed, this change is not reflected in the contract amount.