Scaling & Limitations?

Hi,

I'm looking to leverage on nopCommerce for a client's marketplace platform who:
1) is expecting 5,000 - 10,000 concurrent users
2) with 20,000 - 30,000 products

Would there be any issues?

Would also like to check, are there any known limitations of the platform?

No problem, you can go with nopCommerce. 20-30k products are managable. We have several clients with 50k+ products. But yes, you need powerful server to serve that.

To serve concurrent 5-10k you will need to run multiple intances, which needs customizations in default code.

Could you please provide more details on the required customization?

You would set up a web farm.  Check docs, search forums - e.g.
https://docs.nopcommerce.com/en/installation-and-upgrading/installing-nopcommerce/installing-on-microsoft-azure.html
https://www.nopcommerce.com/en/boards/topic/75460/load-balance-webfarm-support-version-420-help-please