Add custom values to dropdown menu fields in Zaps

Written by Owner

Updated at August 20th, 2025

+ More

Table of Contents

Set up a custom value Limitations

Dropdown menu fields have preset options for you to choose from. When you click the field, the dropdown menu opens so you can select an option. If you want to enter a different value than what is offered in the dropdown menu, you must use a custom value instead. Custom values allow you to manually enter or map fields in the dropdown menu.

Learn more about how entering data in dropdown menu fields works.

Set up a custom value

Next to the field where you want to enter a custom value, click the three dot icon . A dropdown menu will open.
Click Custom. A dropdown menu will open.
Manually enter a custom value or use the dropdown menu to map a field from a previous step.

Modal field displaying settings button

Tip

If you're mapping a custom value from a value you've created in a previous step, your app may not have finished creating the value yet.
- You can add a delay step in between to give your connected app time to create the new value.
Sometimes, the value from a previous step doesn’t have a value ID.
- For example, a previous step may return a customer name instead of their QuickBooks ID.
- You can use a lookup table or search action to return an ID instead.

Example

In the QuickBooks app, the Customer field in the Create Invoice action is a dropdown menu field. It lists all the customers in your QuickBooks account. When you select a customer from the dropdown menu, your Zap will enter the same customer in every invoice. You may want to use a custom value instead, so the Zap enters a different customer each time it runs.

In QuickBooks’ Customer field, the customer name is the value name. The number below it is the value ID. "Arooj Aftab" is the name of the customer value and "7" is the value ID.

Quickbooks Customer field dropdown menu

Limitations

Your custom value must be a value that already exists in the app you’re sending data to.
- If you send a value that does not exist in your app, the step will error.
You must use the value ID, not the value name.
- Sometimes, the ID may be the same as the name of the value, or it may be a numeric or alphanumeric string.
- IDs that contain letters are case-sensitive.
- When you look at the static value options in your dropdown menu field, the value name is displayed in bold, black text and the ID is displayed below it in plain gray text, with the prefix “ID”.

Add custom values to dropdown menu fields in Zaps

Contact Us

Set up a custom value

Limitations

Related Articles