Why Admin cannot create, update/edit, and delete Salary Records at Remuneration or Salary?

Why Admin cannot create, update/edit, and delete Salary Records at Remuneration or Salary?

Symptoms:
Personnel Admin, Payroll Admin and master user cannot create, edit or delete salary records at Remuneration under Personnel module and at Salary under Payroll module. 

Possible cause (s):
The Salary Records is locked at Payroll > Pay Run > Action > Activate Run tab.

Suggested workaround/ solution(s):
1. User need to go to Payroll > Pay Run > Action > Activate Run tab. 
2. Click the Lock button under "Lock/Unlock Salary Record" section. 
3. Unlock the Salary Records and Save.