Can I update an empty image field in my Webflow collection item using the API? I am currently using Google App Script and have no issues updating text-based and boolean-based fields, but when it comes to the image field, I am unable to make any changes. The API response only includes the image field if the CMS item already has an image uploaded, resulting in an error message. I have tried using PUT and PATCH methods, but have had no success. Is there any way to update a blank image field directly from the API? Thank you for any assistance.

Yes, it is possible to update an empty image field in your Webflow collection item using the API. However, there are a few things to keep in mind.

When fetching collection items through the Webflow API, the image field is only included in the API response if the CMS item already has an image uploaded. This is why you're getting an error message when trying to update a blank image field. To resolve this, you can follow the steps below:

1. Create a placeholder image in your Webflow project, which will serve as the default image for the empty image fields. You can upload a transparent or blank image and store its URL.

2. In your Google Apps Script, before making the API call to update the image field, you need to handle the case where the field is empty. Instead of sending an empty value for the image field, you should send the URL of the placeholder image as the value for the field.

3. Use the PATCH method to update the collection item. In the request payload, include the field ID or slug of the image field along with the URL of the placeholder image. Your request payload might look something like this:

```
{
"fields": {
"imageFieldSlug": "https://www.example.com/placeholder-image.jpg"
}
}
```

Replace "imageFieldSlug" with the actual ID or slug of your image field.

By sending the URL of the placeholder image, you effectively update the empty image field with a default image. This approach allows you to update the image field even if it was empty initially.