You can control the classification of materials to be regarded as new on the selection screen.
If you do not specify a selection for new materials (meaning that you specify neither the creation date of the material, that of the MRP view, nor a date for the first consumption), all materials whose creation date is within the analysis period are identified as “new”
You have the following options:
Definition of New Materials
Creation Date From
You specify an exact date on the selection screen. All products with a creation date for plant-independent data that is on or after the specified date are classified as new materials.
Creation Date MRP View From
All materials with an MRP view created after the specified date are classified as new (plant-dependent). The date on which the maintenance status of a material was set D (field MARC-PSTAT) is decisive.
First usage
You enter a specific period on the selection screen (format: PP.YYYY). Materials with a first consumption in or after the specified month are classified as new materials.
First Consumption from x Periods Before Date
You specify an exact date on the selection screen, from which x periods are calculated back. All materials with a consumption on or after the calculated date (key date – number of periods) are classified as new. Materials without consumption are regarded as new. The date of first consumption is set to 31.12.9999.
First Receipt x Periods Before Date
You specify an exact date on the selection screen, from which x periods are calculated back. All materials with a receipt on or after the calculated date (key date – number of periods) are classified as new. Materials without receipt are regarded as new.
Reduction of analysis period
New materials often show zero consumption for a specific period at the start. If you include these periods in the analysis, the degree of data fluctuation increases due to the periods evaluated fully as zero periods. This means the past data of materials that are to be regarded as relatively regular are "distorted" by the zero periods before the creation date. These zero periods are therefore not deemed part of the analysis period for new materials in the standard version of the MRP monitor.
Offset
Depending on the option chosen, you can enter an offset in periods in the direction of the current date. An offset means that the data from the offset period is not taken into account. This is especially useful for new materials for which the observed consumption in the first periods is not representative. In this way you can avoid the effect of “start-up phases” in the classification of new materials.
If you set the indicator No reduction of analysis period for materials created in period of analysis, the analysis period is not reduced. The zero periods at the start are then included in the valuation in the same way as periods with consumption or zero periods, which in terms of time are surrounded by periods with consumption.
There is an interdependency between the settings for the offset and the indicator No reduction of analysis period for materials created in period of analysis.
The new materials indicator is based on past values. Therefore, the analysis is only useful, if you choose a data source oriented towards the past. Reclassification by consumption is not possible for the data sources requirements and planned requirements.