Resolution

At least one of the Roles assigned to the user must have Edit defined in the Rates / Amounts field for their Time Entry Permissions.

Go to User Attributes (System Administration>Security>User Attributes)
Search for the user. Click on the Role that provides payroll access. Click Edit Role at the bottom.
Click the HR Management/Payroll folder.
Click Update.
Select the Time Entry tab.
Update the Rates / Amounts field to Edit.
Select Save.

The user may need to log out and log back in for the changes to take effect.

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