# Pynt for Postman Troubleshooting {% hint style="success" %} **At a Glance**: 🛠️ If you're facing challenges using [Pynt with Postman](/documentation/security-testing-integrations/pynt-with-api-testing-tools/pynt-for-postman.md), this troubleshooting guide will help you resolve common issues for seamless integration and effective API security testing in your Postman environment. {% endhint %}

## **Common error messages**

Issue	Error Message
Pynt container not running	Pynt container is not running
Empty API key	The API key provided is empty, please provide a valid API key
Unauthorized API key	The API key provided was unauthorized, either your API key is invalid or we encountered a network issue.
Collection not found	Unable to fetch collection, please make sure a valid collection/environment was provided
Non-unique collection name	More than one collection with the same name was found - please provide a unique collection name or collection id
Empty collection identifier	The collection identifier provided in the Pynt configuration under "YOUR-COLLECTION" is malformed
Unreachable target	We identified that your target is unreachable. Please make sure your target is up and running.
Target responds with errors	All responses from your functional test collection run returned with errors, please check your collection vs. the target
Unresolved Target Domain	The target domain was unresolved. Please make sure your functional tests use the correct domain
Unresolved Variable	The functional tests had an unresolved variable. Check that the environment file is included
TLS Handshake Fail	TLS handshake failed because your target uses a self-signed certificate.

## **Common warning messages**

Issue	Warning message
Few requests	We identified only X requests. Adding more requests will provide better security test coverage
One user only	The functional tests included only one user. Adding more users will allow Pynt to run more accurate tests
Failed assertions	The functional tests had assertions that failed, which affected the security tests. Fixing these assertions will improve the security tests

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