How To Fix WV191 - The net/net PP found is negative

WV191 - Overview

• Message type: E = Error

• Message class: WV - Messages about Sales Price Calculation

• Message number: 191

• Message text: The net/net PP found is negative

What causes this issue?

The net net purchase price that was determined during price
determination is negative.

System Response

A sales price cannot be calculated for this item.

How to fix this error?

Check the basic purchase price and all the conditions that are used to
determine the net net purchase price. In particular, pay attention to
the absolute conditions with a negative sign. If necessary, set these
condition records to "not relevant to pricing".

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WV191 - The net/net PP found is negative ?

  The SAP error message WV191, which states "The net/net PP found is negative," typically occurs in the context of production planning and material requirements planning (MRP) processes. This error indicates that the system has calculated a negative net requirement for a product, which is not valid in the context of planning and inventory management.
  Causes:
  
  Incorrect Master Data: The material master data may have incorrect settings, such as negative stock levels, incorrect safety stock levels, or incorrect planning parameters.
  Negative Stock: If the stock levels for a material are negative, it can lead to negative net requirements.
  Incorrect Demand Forecasting: If the demand forecast is set too high or if there are incorrect sales orders, it can lead to negative net requirements.
  Incorrect MRP Settings: MRP settings such as lead times, lot sizes, or planning strategies may be incorrectly configured.
  Overlapping Orders: If there are overlapping production orders or purchase orders that are not accounted for