These fields are on the Sales tab of the Customer Maintenance window.
Period-to-Date Cost.
This is the cost of goods sold to this account so far this period.
POS and the Open Item Maintenance window update this field.
You can change this field.
Year-to-Date Cost.
This is the cost of goods sold to this account so far this year.
POS and the Open Item Maintenance window update this field.
You can change this field.
Last Year Cost.
This is the cost of goods sold to this account last year.
This field is display only.
The A/R Flexible Report (RFR), Flex Report Name YTDROLL updates this field by moving the YTD Cost to it.