SAP Knowledge Base Article - Public

2801264 - Error 'Changing the conversion not possible; it is used by one or more open stock items' Appears When Changing Quantity Conversions

Symptom

System throws the following error messages when changing the UoM under Quality Conversions:

Changing the conversion not possible; it is used by one or more open stock items.

Environment

SAP Business ByDesign

Reproducing the Issue

  1. Go to Product Data work center
  2. Select the Materials view
  3. Select All Materials
  4. Search and select the material ABC (Where ABC represents the Material ID)
  5. Select View All
  6. In the General tab, under Quantity Conversions change the UoM Conversion from X to Y

Error Message Appears:

Changing the conversion not possible; it is used by one or more open stock items.

Cause

For material ABC, the planning unit of measure (Pieces) and inventory unit of measure (KGM) is different.

Since there is a stock in Inventory for this material, the stock overview and the planning view of inventory (Supply Planning Work Center-> Products ) are in the sync with the current conversion maintained.

Since you are trying to change the UoM conversion - it could create an inconsistency in the system between inventory and planning and hence the veto check is raised.

This is an expected behavior and as per the design.

Resolution

In order to change the UoM conversion please clear the inventory first and then the conversion would be possible.

Keywords

conversion, open stock items, quantity, material , KBA , AP-IP-INV , Inventory , Problem

Product

SAP Business ByDesign all versions