1. SAP Help Portal - About the Model Structure: "When you create a model with planning capabilities
a Version dimension is required. A Date dimension is also required for time-series data." This documentation confirms that Version and Date are the required
and therefore default
dimensions for planning models.
Source: SAP Help Portal
About the Model Structure.
2. SAP Help Portal - Create a New Model from a Blank Model: In the steps for creating a new planning model
the documentation states: "For a planning model
the Version dimension is added by default." It also implicitly requires the Date dimension for any time-series data
which is inherent to planning.
Source: SAP Help Portal
Create a New Model from a Blank Model.