API Monitoring test has client certificate added, but request steps that require the certificate fail with a 400 "No required SSL certificate was sent" response.
Client certificate was added to the test environment but request steps that require the certificate were not configured to add the client certificate.
Release : SAAS
Component : BLAZEMETER API MONITORING
Per the Environment Headers and Authentication article after adding the client certificate (in PEM format) to the Authentication section of the environment, the certificate is added to requests in the test by selecting Add Client Certificate under the Authentication options of an individual requests that require the certificate:
or in the environment if all requests in the test require the certificate: