Symptoms

You might get a 400 error if you delete an alert rule for your service scaling group and then create another one with the same name.

Impact

Nominal, these APIs are unpublished so updating through the API is unsupported and the time it takes you to manually call them through the UI will be enough to not see this issue

Conditions

This happens when you delete an alert rule then attempt to create a new one immediately afterward with the same name

Workaround

To work around this issue, wait a few seconds between deleting and creating alert rules.

Fix Information

None

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips