never mind - found the issue. global product detail setting had inventory turned off.

Does anyone know if it's possible to customize the error message that displays when someone tries to order an invalid quantity on a per-product basis? IOW - if I have a specific product configured with a max # of units that can be ordered - can we customize the error for just that product?

Also - can a rule be implemented that prevents a single user from ordering more than N units ever? IOW prevent the same user from submitting subsequent orders with the max # of units on each order...?

Hi Phil

You can customize almost all error messages from the static localization. This will affect all products. If you want to customize for a specific product, you can create a custom display template (use Razor in v11) and assign it to be used for that product only. You will need to detect and write your own error message in the template.

The only option that comes close is the Max Order Unit which checks the number of units being ordered in the same order. There is currently no option to limit the number of units for the life time of the user. The alternative is to assign a security role to this user who ordered the product through the action rule. Then add the Availability rule to check for the absence of this role.

I hope this helps.