How can I compare nulls with the filter?

I'm using the "Updated Organization" trigger from https://zapier.com/apps/channeltivity/integrations.

A sample trigger has the following payload:

id
  7502
preChanges
  logo_png_url__c: null
postChanges
  logo_png_url__c: null

When I try to use a Filter to only continue if they’re different, it appears that it says the nulls are the same:

How can I compare the nulls to only proceed if they’re different?

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Hi @zap29550

Good question.

Try using these logic conditions to the Filter step…

PRE does not exactly match POST

AND

PRE exists

AND

POST exists

@Troy Tessalone I don’t think that will work if PRE is null and POST has a value?

@zap29550

Try these Filter conditions

GROUP 1

PRE does not exactly match POST

AND

PRE exists

AND

POST exists

GROUP 2

PRE exists

AND

POST does not exist

pOR]

GROUP 3

PRE does not exist

AND

POST exists

I think that will work. I will give it a try. Thank you @Troy Tessalone

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