# Conditional Logic (Avis Options) **Scenario:** Only if customers choose to add a card, the option to put in a message on the card will show. You can check out our [Demo product](https://avis-demo.myshopify.com/products/conditional-logic-1) to see how it works 😊

## **How to set up the Conditional logic** {% hint style="info" %} Kindly note that, for the Conditional logic feature to work, all related options need to be in the same Option Set. {% endhint %} **1.** In the **Avis Option** tab -> **Option Set** section -> click the **Create Option Set** button -> Click **Add option** button -> Choose your Option Type

**2.** To begin, you need to create your primary option (Option A). In this case, we created a radio button option asking if the customer would like to add a card.

**3.** Then, create the second option as a text option (Option B) so customers can fill in their message.

**4.** Within the second option (Option B), click **Create Conditional logic**

Then, pick the **Label on Cart** of the option that you would like your second option (Option B) to depend on from the dropdown list. Please choose the correct **Label on Cart** and make sure that it contains your affirmative option value above. {% hint style="info" %} Please note that every time you change any data of the options related to the Conditional logic, you will need to update the conditions again to ensure everything matches and works smoothly. {% endhint %}

**5.** Hit **Save** to finish the option B setup.

**6.** In the **Select product** section, choose the products you want this Option Set to apply to. **7.** Hit the **Save** button on the top right corner to save the **Option Set** and you're all done!

You can check on the result in the Preview section (on the right side of the options) or you can open the online Product page and see how the Conditional logic works. {% hint style="info" %} The set up of it can be seen in this vid: {% endhint %} *** ## Rules and conditions You can define rules that determine **when to Show, Hide or Disable** a specific option. > **Show this option if All / Any of the following match** * **All** → The condition will apply only when *every rule* you add is true.\ Example: Show “Engraving Font” only if “Add Engraving” is *Yes* **and** “Material” is *Wood*. * **Any** → The condition will apply if *at least one rule* is true.\ Example: Show “Gift Wrap” if “Additional Gift” is *Mug* **or** *Notebook*.

*** ### Condition Types Explained


Condition Type	Description	Example
contains	True if the selected option includes the specified value.	Show if Size option contains Small (Medium Small will be accepted)
does not contain	True if the selected option does not include the specified value.	Show if Size option does not contain Small. (Medium Small won't be accepted)
is equal to	True if the selected option’s value exactly matches the specified value.	Show if Size option is equal to Small (Medium Small won't be accepted)
is not equal to	True if the selected option’s value does not match the specified value.	Show if Size option is not equal to Small (Medium Small will be accepted)
starts with	True if the selected option’s value begins with the specified text.	Show if Size option starts with S (Small will be accepted)
ends with	True if the selected option’s value ends with the specified text.	Show if Size option ends with l (Medium Small will be accepted)
greater than	True if the selected option’s numeric value is higher than the entered number.	Show if Quantity option is greater than 5.
less than	True if the selected option’s numeric value is lower than the entered number.	Show if Quantity option is less than 3.
has any value	True if the selected option has any value selected or entered.	Show if Custom Text option os input.
has no value	True if the selected option is empty or not selected.	Show if Custom Text option hasn't been input