Alerts in reOptimize are now only against monthly budgets. Please allow alerts on daily spend. The graph does show daily spend, so it must be possible.
Even better would be to allow a hard limit on daily spend. In GCP, only a few parts, like AppEngine, have such a feature, but one is needed for GCP in general.
(It is possible to implement this, though it will be hard and results will be imperfect.)
