• In Website > Configuration > Setting, under the Products Feature, Enable the Combo option.

• In Product form, enable 'Is Combo' option to sale the Combo Product.
• In Products, under the Combo tab, select the given option like required or optional, categories, products and number of item that you want to sale.

• In website click on shop menu combo product button will be visible, click on that user can show all combo product.

• Now click on add to cart button.

• By Clicking on the Add to cart button, One popup will be display, now select the optional product that you want to buy.
• In Product form, When Select Default is enable in that case when you click on Combo button, popup will open with selected product(Selected Product is based on the No. of Items you have configure in product form).

• By Clicking on Add to cart from popup,selected product will be add on cart and that will be display in checkout view.
• From here user can edit combo product as well.

• User can pay amount using any payment acquire.

• You can see confirmation page after successful payment.

• After that you can check sale order with done state.

• Here we have delivery order for child and parent product.

• Here we have delivery order for child product.

• Here we have delivery order for parent product.
• You can not validate parent product until child product is ready.

• Here you can see invoice.

• Here You can print the combo product report from print -> sale with combo