A-ADS has no minimum daily budget, you can set any amount that suits you, but note that the amount would have an impact on the connected ad units, expected clicks, and impressions.
We recommend setting a daily budget higher than 0.00001 BTC, because due to the rounding errors and probabilistic nature of our algorithms it might not be spent, or could be spent without a result..

The larger the budget, the longer the campaign and wider the targeting - the more predictable results.
Was this article helpful?
Thank you!