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The resolution date is the date when the issue's resolution field changes from EMPTY to any value.

To create a First/Last

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Resolution

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Date Custom Field

• Navigate to to Jira Admin > Add-ons Manage Apps > Enhancer Plugin For Jira Menu > Custom Field Configuration and go to the Date tabFields (JEP).
• Click on the Image Removedthe Image Added button.
• Fill in the dialog box:
  Image Removed
  
  • Pick JEP - First "Resolution" Status Date or JEP - Last "Resolution" Date in the custom field drop-down menu.
  • Create a name for the custom field
• And then click on the Add Custom Click on the Date tab on the left-hand side of the dialogue. 
• Select First Resolution Date or Last Resolution Date, then click Add custom field.
  Image Added

• Fill in the dialog box:
  Image Added
  
  • Create a name for the custom field.
  • Enable Clear when reopened if you want the field to be cleared when the issue is reopened

• And then click on the Save Custom Field button. That's it.

This custom field can be used to sort or search in issue navigator.

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