How to add query parameter(NOT LIKE/LIKE condition) in REST API postman

Summary:

Hi All,

I'm looking for solution to get Task Number based on project those are not like or starts with "250%" or "300%.

REST API -

/fscmRestApi/resources/11.13.18.05/projects/{projectID}/child/Tasks?q=TaskNumber NOT LIKE "250%"

Above API is not working for Not Like condition, but its working for Like condition.

What could be the issue here?

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