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Use the Previous Value Match filter whenever you want to trigger a flow when a Podio Items Field changes from a specific value.
For example: If you have a category field called Status in your App with three(3) options (New, Working, Complete) and you want to trigger a flow when the Status is changed from the Complete status. The filter would be arranged as per the following:
* If Status has been changed
* AND If Status BEFORE is equal to Complete
Then add this Field Value Match filter and set to the specific field that would be changed and the value it should match.
Complete flow by adding Actions to complete your workflow steps.