Articles: Maintaining Units of Measure in Accordance with the Packaging Hierarchy 
Articles: Maintaining Units of Measure in Accordance with the Packaging Hierarchy
Unless indicated otherwise, the information contained in this info object is relevant to the article master for retail and to the material master for industry.
Use
To maintain units of measure in accordance with the packaging hierarchy, you define a lower-level unit of measure for each alternative unit of measure. The conversion factor relates to the lower-level unit of measure, not to the base unit of measure.
The base unit of measure is piece. You define the following alternative units of measure:
For the box, piece is the lower-level unit of measure, for the layer, it is box, and for the pallet, it is layer.
In the article master for retail, the relevant subscreen Units of measure/EANs/dimensions (SAPLMGD2 8022) appears on the Basic Data screen. In the material master for industry, the relevant subscreen (SAPLMGD1 8022) remains hidden until assigned to a data screen (see Prerequisites below).
It is not possible to use batch-specific units of measure (proportion/product units) as lower-level units of measure.
A single conversion factor with 3 decimal places is used instead of two integer conversion factors.
The base unit of measure is piece, and the alternative unit of measure is meter. You define the conversion factor as follows:
Meter <=> 0.25 piece, not 4 meters <=> 1 piece.
The conversion factors in relation to the base unit of measure must not exceed 99999. For example, it is not possible to define that a box equals 1,000 pieces, and that a layer equals 100 boxes since a layer would otherwise consist of 100,000 pieces, which would not fit in the relevant field.
Maintaining units of measure in this way is particularly useful if a packaging hierarchy exists and if the conversion factors are integers. If, in retail, this is not the case, and you want to maintain alternative units of measure in direct relation to the base unit of measure (with two integer conversion factors), you can do so as follows:
You do this in Customizing for the Article Master in the activity Define Structure of Data Screens for Each Screen Sequence.
Prerequisites
Material Master for Industry
To maintain units of measure in accordance with the packaging hierarchy in the material master for industry, subscreen SAPLMGD1 8020 on the additional screen Units of Measure must be replaced with subscreen SAPLMGD1 8022. You do this in Customizing for the Material Master in the activity Define Structure of Data Screens for Each Screen Sequence.