The “unable to get local issuer certificate” error in Postman typically occurs when the client (Postman) cannot verify the SSL certificate chain from the server. This often happens because Postman is missing the root certificate required to validate the chain.
To resolve this, you can disable SSL certificate verification in Postman under Settings > General, or you can install the missing certificates locally. You can learn more about fixing this error at - How to Fix Unable to Get Local Issuer Certificate Error (found from Google).