> ## Documentation Index
> Fetch the complete documentation index at: https://docs.invoca.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Can I Use Other Comparison Operators to Check a Condition in Call Treatment?

> Edit the default equals-operator expression directly to use other comparison operators, like != for "not equal to."

You can use custom Marketing Data in a call treatment condition to check for a specific value. Click **Check a Condition** > **Add Condition** > **Custom Fields**, then choose the data field you want to check.

Once a field is selected, Invoca adds a default expression using the equals operator (`=`). You can use other comparison operators by editing that symbol directly in the input field — for example, `!=` checks for "not equal to."

**Applies to:** Campaign, Call Treatment

## Where to go next

* [Call Treatments & IVR](/s/article/call-treatments-ivr)