Thank you for your comments. As the service has multiple requests, therefore, we cannot change the baseline on the service level to affect all the requests/methods. The workaround to this requirement is to make the request a key request and change the threshold/or anomalies accordingly.
I know that I have already answered this question in your other Forum post, but I thought I would provide the answer again here as well in case others view this thread and may benefit from it.
You can define thresholds for Key Requests in the Anomaly Detection settings of the service itself. As shown in this screenshot: