For every date range defined for each Shaam group, you can define the withholding tax rate and the maximum amount allowed for applying withholding tax.
From the SAP Business One Main Menu, choose
.Choose the WHT Determination button.
In the Withholding Tax Determination — Setup window, choose the Withholding Tax Hierarchy — Rows button. The Withholding Tax Hierarchy — Rows — Setup window appears.
If required, in the Deduction % field, change the percentage.
If required, in the Maximum Total field, change the amount.
To save your changes, choose the Update button, then the OK button.