There is a problem updating the Standard Quote Item Custom Field.

Hello,

Below are two item custom fields:
1) ExtendedAmount : This is a standard item custom field.

2) Margin: This item custom field was created for business purposes.

The value of the ExtendedAmount item custom field must be changed to match the value of the Margin item custom field. To get this capability, I have created a custom quote calculation script, but it did not work. Below you will find the script code.

Item.ExtendedAmount.Value = float(Item.Margin.Value)

It is working with other standard fields. Below you will find the script code.

Item.ListPrice = float(Item.Margin.Value)

Please help me with this issue.