Using Oracle Fusion Cloud Financials Budgetary Control, is there a budget approval workflow for uploading or transferring a budget?

No, there isn't a native approval workflow for budget uploads or transfers.

When budgets are uploaded, whether through spreadsheets or through the Import Budget process, they're applied directly without an intermediate approval step. Likewise, when budgets are transferred between accounts or cost centers, the application processes these transfers immediately without routing them for approval.

If approvals are required, consider setting up Budget Revisions in Planning and Budgeting Cloud and integrating it with Budgetary Control.