The Vercel platfrom, by default, does not store logs that derive from static assets and Serverless Functions. To store logs in Vercel, we recommend taking advantage of Log Drains through 3rd-party solutions.
There are several 3rd-party Log Drain Integrations from our Integrations Marketplace that are ready to integrate with Vercel:
Directions on how to setup these integrations can be found within the Integration Guide links or are provided as part of the installation process.
If the Log Drain integration you are looking for is not available, please submit feedback as described here.