On 28 May 2025 at 19:00 UTC, our Engineering and Operations Teams began investigating subaccount creation failures occurring within our WACM/WAC API services. These failures resulted in an HTTP 5XX response error when clients requested the creation of a subaccount utilizing the API or WACM UI. Upon investigation, it was found that a recently deployed software update was responsible for these errors from a bug which caused the API to be unable to reach an internal service due to query timeouts. Once the bug was discovered, our Engineering Team adjusted an internal parameter, allowing API requests to succeed properly. On 29 May 2025 at 03:30 UTC, the WACM/WAC API services were returned back to normal operation.