Life is short to stop
Best Practices
Monitor Performance: Always keep an eye on campaign performance metrics after you make any adjustments to ensure that the changes are beneficial.
Consider Your Strategy: If your goal is to optimize performance based on data and maintain stability in results, adjusting the budget on the existing campaign is typically advisable.
In summary, it's usually best to wait until after the 7-day learning phase to change the budget and doing so in the same ad campaign is fine, as long as you make incremental changes and monitor the effects on performance closely.