The price in the purchase requisition is an important criterion, on the basis of which the system can determine the release strategy for the requisition.
Up to Release 3.0, the system requires entry of this price data, and in Customizing for the requisition the fields "Price" and "Price unit" are supplied with the setting "Mandatory entry".
As of Release 4.0A, specification of the price is no longer
The Customizing setting in the standard system supplied is still "Mandatory entry", but this setting can be changed.
For more on this subject, refer to the IMG documentation
Define screen layout at document level .