Facebook Conversions API Sending [] as Content ID even when left blank

When sending a lead event through the Facebook Conversion API module in Pabbly Connect, I receive [] as a Content ID parameter even when I leave it blank (I found this out while testing with the native Facebook test function).

Here's an image of what it looks like:

Here's what it looks like when sent via Zapier:

Could someone kindly look into this? Thanks

We have made some changes to the Send Lead Event action of the Facebook Conversion API and now, you will not see the blank array in the received event data when there is no value passed in the content ID.

Also, check the Content IDs field is no more required to pass the data within double quotes.

Kindly, update your workflow with the updated Action and remove the deprecated action form there.