Plant Parameters
In this step, you make the general plant settings for
Inventory Management. All settings are also contained in the individual steps of the Implementation Guide for Inventory Management. If you want to allow negative stocks in your plant, you have to set the XBKNG indicator in addition to the settings in this step. To maintain this indicator, choose the step Goods Issue/Transfer Postings -> Allow Negative Stocks in Customizing.
Recommendation
SAP recommends that you do not make the plant settings here, but in the individual steps of the Implementation Guide, so that the settings here are not without a context. Dependent settings are not contained in this step.
Activities
If you have created a plant in the enterprise
structure using the 
Copy plant function, you do not need to make any
settings.
If you have created a plant manually, you have to create a new entry for the plant parameters.