This document provides a comprehensive guide on how to configure the 'Month' and 'Week' selling units within the HirePOS system. Proper setup of these units is essential for ensuring accurate auto calculations that account for varying month lengths, thereby facilitating seamless hire period calculations.

To configure the Month unit for precise calculations, follow the steps outlined below:

1. Navigate to Setup > Item Related > Selling Units.

2. Click on the Month unit to edit it, or create a new unit by selecting the New Selling Unit button.

3. Enter a descriptive Unit Description such as 'Month' or 'Monthly'.

4. Set the Time Span field to 30.43687, which represents the average number of days in a month.

5. Select Day from the Interval dropdown menu.

6. Check the Base on Calendar Day (Exclude Times) checkbox to ensure calculations are based on calendar days.

7. Set the Grace Period to 72 to accommodate variations in month lengths.

8. Ensure all other fields in all tabs are left blank or unchecked.

9. Click the Save Changes button at the bottom to save your settings.

If the Month unit is linked to an item with a Week unit, follow these steps to adjust the Week unit:

1. Navigate to Setup > Item Related > Selling Units.

2. Edit the Week unit.

3. Set the Maximum attribute to 4 on the first tab.

4. Click the Save Changes button at the bottom to apply the changes.

By setting the Maximum attribute to 4 on the Week unit, you ensure that only up to 4 Weeks can be charged. This configuration allows for a smooth transition to the Month unit as the hire period extends, preventing overcharging in scenarios where the Month unit is utilized. For items that do not have the Month unit, the Maximum setting will not impact the calculation, thereby allowing for accurate hire period increments.