How do I clear out the Commerce Engine database?

• Truncate all of the tables in XXX_Global & XXX_SharedEnvironments DB's, then recycle IIS and reboostrap & initialize.

Why can't I add a product to the cart?

• A product doesn't have to have varients, but if it does you need to add a variant to the cart, not the product itself.

When does the T4 templates in the proxy project have to be rebult?

• Anytime you change the controllers in the engine, or the data models being returned.

If in doubt rebuild the commerce indexes