Only user users who have Edit permission Edit can input the values.
On the issue screen Issue Screen, Jira have has two mode modes ( issue create, issue viewIssue Create, Issue View).
In issue create Issue Create mode, Edit permission Edit is required. The user users can chosen choose the values in the custom field.
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In issue view Issue View mode, the user have permission view or edit will see the value of the custom field.
if user don’t have permission:
image don’t have permission.
if the custom field is not configure.
image don’t have configure.
Number Field Security get
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Click on this custom field to go to Edit mode.
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If the users don’t have such permission:
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Field Security User Picker gets the value from the chosen custom field on the Issue. The application will process the value (encode to store it, decode to show it).