Use Cases for What-if Analysis
Like Time-Series Based Applications, Order-Based Planning can also perform what-if analysis using Versions and Scenarios. There is a slight difference in how versions and scenarios are configured and used in Order Based Planning, as described in the following material. Version planning, scenario, and simulation in case of Order-Base Planning can also be performed from SAP IBP Web UI.

Manage Version and Scenario app can be used to keep track of any versions and scenarios created, as well as any versions and scenarios that other people have shared.
Versions
Typically, Versions are Multi-User, used over longer periods compared to scenarios and simulations. They are created during configuration by the system administrator. Versions could be master data specific.

Version Specific Master Data
You can enable a version with master data specific to that version (VSMD) in your planning area. You can integrate and modify non-key attribute values in the version and simulate how changes to the master data affect the base version.
Note that by default, the external version-specific master data is empty; use the Order-Based Planning: Copy Version Data application job to populate data.

Scenarios
Scenarios are not created during configuration but are created on the fly by the users. Scenarios do not have scenario-specific master data but use the master data of the versions. Scenarios typically have a life cycle that is less than versions. Scenarios for Order-Based Planning are created in SAP IBP Web UI using Manage Versions and Scenarios app.
