@Hans Meyer Thanks, For uni-variate detection, can you try to use length within 8640 to see how the detection performs. Actually to address the length issue, you can try sample data or aggregate data to a higher frequency. If none of the above works, would like to understand how many data points need to used for one-time detection. Multivariate detection API can not be applied to one variable. You have to prepare multiple signals to detect anomalies. For training, you could send at most 1 million points. For inference, each time you could inference 20,000 points.