What do the different OCR Detail settings mean?

Nook allows you to set the OCR detail which determines the precision with which invoice line items will be extracted

There are three options:

1. Unit Amount
2. Line Item Total
3. Total 

Unit Amount contains the most detail with some precision cost and Total offers maximum precision with some information loss. 

1. Unit Amount 

OCR will attempt to extract each line item with unit amounts and quantities. Line item totals and invoice totals are calculated from these. 

Example:

2. Line Item Total 

OCR will extract the total value of each line item and use that as the unit amount and will set the quantity to one. 

Example: 

3. Total 

OCR will extract the total for the invoice and create one line item using the description of the first line item. 

Example: