# WhatsApp API Error INVALID_PROPERTY_TYPE in WhatsApp Flows
Author: Prashant Jangid
Author URL: https://www.heltar.com/blogs/author/prashant-jangid
Published: 2025-03-31
Category: Troubleshoot
Category URL: https://www.heltar.com/blogs/category/troubleshoot
Tags: WhatsApp Flows Error
Tag URLs: WhatsApp Flows Error (https://www.heltar.com/blogs/tag/whatsapp-flows-error)
URL: https://www.heltar.com/blogs/whatsapp-api-error-invalidpropertytype-in-whatsapp-flows-cm8ww0gka0002yis2f0bv5jug

When building or editing a WhatsApp Flow, you might run into an error like this:

**INVALID\_PROPERTY\_TYPE**

**Expected property (errorPath) to be of type (expectedType), but found (actualType).**

This is a static validation error, meaning WhatsApp checks the structure of your JSON before even running the flow. Let's break it down and fix it.

## What This Error Means

The error shows up when a valid property is present—but its value is in the wrong format or type.

You’re not missing the property itself, but the value isn’t what the system expects.

## Example of the Problem

Here’s a common example that causes this error:

```
{
  "type": "TextArea",
  "label": "Your input",
  "enabled": "yes"
}
```

Let’s look at what’s wrong:

- "enabled" is a valid property, but its value should be a boolean (true or false), not a string.

- "enabled": "yes"  → invalid type (string instead of boolean)


## The Fix

To fix it, just use the correct data type:

```
{
  "type": "TextArea",
  "label": "Your input",
  "enabled": true
}
```

Now, "enabled" is set to a boolean value, which is exactly what the Flow engine expects.

## Common Property Type Expectations in WhatsApp Flows

Here's a quick reference of properties and their expected types:

Property

Expected Type

Example Values

enabled

boolean

true, false

label

string

"Enter name"

max-chars

number / string

100 or "${data.max\_chars}"

options

array

\[{"label": "Yes", "value": "yes"}\]

type

string

"TextInput", "Button", "TextArea"

For more troubleshooting insights related to WhatsApp Business API, check out [heltar.com/blogs](http://heltar.com/blogs).


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