How can I limit the number of submissions per event?

I have set up a registration form for 8 events on one form. This allows some to come to more than one event. I have a maximum number per event of 25. However if I set that in settings it will calculate the total number of submissions whether there was one attending one event or another. How can I limit the number of people per event in one registration form which has 8 events as individual products?

If I'm understanding your concern correctly, I believe the solution you are looking for can be found in this guide: How-to-Setup-a-Payment-Order-Form-with-Limited-Stocks

Please check the guide and feel free to contact us anytime if you have any further question or need more clarifications.

Thank you but what I need is the ability to order different products with inventory.
Single purchase looks good but I need to be able to choose more than one product with inventory.
These are the various dinners amount is zero as I was testing the response email.
Dinner &/or Donation
TBLI VIP Dinner Amsterdam - Sept. 7 The Dylan Amsterdam (Amount: 0.00 EUR)
TBLI VIP Dinner Stockholm - Sept. 29 Eriks Gondolen (Amount: 0.00 EUR)
TBLI VIP Dinner Zurich - Oct. 30 Haus Zum Rüden (Amount: 0.00 EUR)
TBLI VIP Dinner Geneva - Nov. 9 Cercle de La Terrasse (Amount: 0.00 EUR)
TBLI VIP Dinner Milan - Nov. 23 Giacomo Arengario (Amount: 0.00 EUR)
TBLI VIP Dinner London - Dec. 5 House of St. Barnabus (Amount: 0.00 EUR)
TBLI VIP Dinner Paris - Dec. 13 Le Clarence (Amount: 0.00 EUR)
Total: 0.00 EUR
Coupon used: TBLIGuest2017

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In this case you will need to add a separate inventory widget field for each event (one widget per event) and sum the total. This way your clients will be able to order multiple products.