I've been working in ArcGIS Online for 9 years, and this has never happened. I just tried to run an analysis (enrich layer with one data set from Living Atlas), and received an error message that my credit threshold had been reached, that the threshold was 100 credits, and I couldn't run the analysis. Whatt????? I often run analyses that take up to 3,000 credits, and this has never happened. I have not changed any settings on my account. The only possible difference - I was doing this in the new MapViewer rather than the older version.
Please help!
