NOTE - the following steps are designed for when you want to limit your Essential Companion Tickets to be purchased only with Access Tickets.
You'll need to have created an Access Tag and Access Prices
Create a new Basket Validation Rule
On the Price Table page, click Duplicate As Draft to create a new draft version of the Price Table
Click Basket Validation and on the pop-up, click New Basket Validation
Add Details
Name - for internal use, e.g. Access/Companion
Description - for internal use, e.g. Access & Companion tickets to be sold correctly
Error Message - this is the message that will appear in the Purchase Flow when the rules are not met for your chosen tickets/prices, e.g. Essential Companion tickets may only be purchased with Access Tickets
Add Rule
You'll need to select a few Validation Rules from the dropdown. The following is an example of ensuring a 1:1 ratio of Access and Essential Companion Tickets:
Customer has tag {access}
This means that only Customers with an access tag can purchase Essential Companion tickets.
This Tag can also be an Essential Companion Tag if you prefer to separate from Access Tickets
Basket can't have more than {1} tickets from variant(s) {Essential Companion}
Basket must have at least {1} tickets from variant(s) {Access}
Add an Only If rule - this will mean that the rule you've added will only apply if the following conditions are met:
Basket has at least {1} tickets from variant(s) {Essential Companion}
This means that the rules you set above will only be considered if an Essential Companion Ticket is in the Basket.
NOTE - if you have a Customer that would require two Essential Companions, then you would need to have a separate Tag and Basket Validation rule. It's not possible to have different multiples of the same rule within one Basket Validation.
If you require further specificity then please contact Support.
Click Save Validation Rule and it will be applied to your Price Table
Save, Review & Publish the table for your changes to go live.