Webhook Record Existance Checking

[krite]

Things being used: Webhook Reciever, Conditional Blocks
What i want: I have a constant data send webhook setup, syncing some data to the table,
I want to setup something like if Record_Id(From Webhook) is not listed in a field of Airtable then only it will create records,

I have tried this 

But it's not working for me, 

[Karlstens]

You could use the return length of the Find Records action, and depending on if a record is found then execute your conditional actions.

In my example below, I have a condition that if no records match the ID given in the body of the webhook, then create a new record.

For this to work - a Formula field is needed that exposes the Record ID for the Find Records action to use.