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Formula - notequal

notequal('Expression',Content) Formula function used to check if two strings (text) are not equal.

Quick example

Let's get you started with the following example: For other, and more advanced examples please scroll down on this page to the Examples section.

Input Expression Result



Text Data notequal expression Unique values


  • Check if two word/character are the not equal.
  • Return Unique true when the compared text/string are different.
  • Can be applied to any valid Content that returns text/string; Like jsonpath, xpath functions, review Formula user guide for the complete list of functions.

This plugin loads the entire message into RAM, so make sure to apply this function only on small messages.

How to use

To use the notequal function, the Content parameter should contain text/string (otherwise it will fail and you will end up with a garbage result). But first and foremost we have to configure the Formula plugin:

  • Select Formula as the expression type plugin.
  • Write down the expression to use in the 'Expression' text area.
  • Input proper Content as a parameter to the function.


Use the notequal function with any of the following parameters:

  • From Message Body: notequal('Expression', body)

  • From Message Context: notequal('Expression',context('MessageContextKey'))

  • Result from previous Formula operation notequal('Expression',SomeOtherNestedFormulaFunction(Content))


Below you will find different common examples of how to use the notequal function.

Body as Content

The message body is normal text "UTC", by using the provided expression, the result is true.

e.g. notEqual('GMT',body)

Message Body




Context as Content

"UTC" is the Message context value and the key is "id", by using the provided expression, the result is true. e.g. notEqual('GMT', context('id'))


Message Context Value



notEqual('GMT', context('id'))

Formula Function as Content

Regex function has been used as a content parameter for notequal function, by using the provided expression, the result is true.

e.g. notEqual('CET', regex('GMT|UTC', body))


Message Body



notEqual('CET', regex('GMT|UTC', body))

Next Step

How to Add or manage Search Fields
How to Add or manage Log Views

Expression Type Plugins are used in Search Fields
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What are Search Field Expressions?
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What are Log Views?