WeekDayName() Function

YouTube: How to Use the WeekDayName () Function in Report Custom Columns?

How to Use the WeekDayName () Function in Report Custom Columns?

In this tutorial, we'll walk you through designing an expression using the WeekdayName function, which returns the name of the day (e.g., Monday, Tuesday) from a date field such as Bill Date.

Accessing the Expression Designer:

• Navigate to the Reporting section.

• Open the Sales Register Detailed Report or any "Report".

• Go to Setup Column Attributes.

• Here, you'll see a list of available columns that can be used to build expressions.

• Click on "Add/Edit Expression Columns" where you can write your expression using predefined functions.

• Before adding the expression to the report, go to Other Settings.

• Ensure the Script Editor is set to VBScript.

• Click Save.

  • Note: VBScript is the default for new configurations but always verify this setting.

Writing Your First Expression

• Every expression must start with the script header: '#@LSCRIPT

• Click the (+) Plus icon to create a new expression.

• Fill in the required fields:

  • Expression Name – A unique name for your expression.

  • Expression Type – Choose either Text or Numeric depending on the expected output.

Creating a Simple WeekDayName() Expression

• Double-click your newly created expression to insert it into the script editor.

• Define the expression using the syntax:

  • Expression Name = WeekDayName(CDATE(BILL_DATE))

    • WeekdayName(...) converts that date into the day name like "Wednesday".

    • CDate(BILL_DATE) ensures the string is interpreted as a proper date.

• Save the expression once defined.

• Scroll down and check the box beside the expression name to enable it.

• Save and proceed to check the effect.

• Refresh the report to view the final result.

Result:

The new column will now display the name of the day for each bill date. For example, if the Bill Date is 2025-06-09, the column will display:

Monday