Field help (PNHPURTYP)

The presence of this information depends on the transaction setup.
The different product types are: Purchases, Fixed assets and Services. When the return line has been created from a receipt line, the purchase type of the receipt line is used.
In the case of a direct return, the purchase type is initialized based on the tax posting associated with the defined general account.
If the return line is subject to a credit memo, the purchase type will be displayed on the credit memo line.