First of all, go to Payroll > Settings > Pay Items to add pay items for pay run
Check here: First-time Payroll Setup Step 4 to Step 9
Tips: You can add unlimited pay items
Fixed Pay Items: These pay items are calculated in every pay run
Variable Pay Items: For example, transport allowance, telephone allowance, travel allowance, etc., these items are not included in every pay run.
Fixed Pay Items
Step 1
Go to Payroll > Fixed Pay Items > Click on Edit

Step 2
Click on Add

Step 3
Select pay items and enter the amount

Variable Pay Items
Step 1
Go to Payroll > Variable Pay Items > Click on Add
Tips: Click on Edit and you can change the amount

Step 2
You can enter the name and amount, and select pay items and date. For now, we only support to add/edit the information one by one.
