When managing simulations, you may find that a lever created for a broad category (e.g., "All Milk Procurement") applies to some data lines but is missing from others that seem relevant. Below are the primary reasons for this behaviour.
1. Identity Redundancy (Target EF matches Current EF)
The most common reason a lever does not appear is that the Emission Factor (EF) the lever is trying to apply is already assigned to that data line.
How it works: The platform logic often hides levers that result in a "zero change" scenario. If a lever is designed to replace "Standard Milk EF" with "Sustainable Milk EF," but the line
Leche Entera Fluidais already mapped to "Sustainable Milk EF," the lever is considered redundant.The Result: Because the "Possible Reduced Emission" would be 0, the lever is filtered out to avoid cluttering the simulation interface.
2. Filtering and Scope Mismatches
Levers are often constrained by specific filters set during creation. If a data line falls outside even one of these parameters, the lever will not be available.
Attribute Mismatches: Ensure the data line matches all attributes defined in the lever (e.g., Category, Region, Supplier, or Business Unit).
Case Sensitivity: While many search functions are case-insensitive, specific backend matching or custom tags may require an exact string match (e.g., "MILK" vs "milk").
3. Missing EF Recommendations
For a "Switch EF" lever to be available, the system must be able to validate a replacement path.
The Cause: If the target data lines do not have a valid, mapped Emission Factor in the baseline footprint, or if the "Alternative EF" defined in the lever is incompatible with the unit of measure (UoM) of the data line, the lever will fail to appear.
4. Simulation V2 Logic: Activity Grouping
In Simulations V2, activities are often grouped by description and metadata.
The Cause: If a lever is applied at a "Category" level, but certain lines within that category were manually re-mapped or overridden in the baseline, they may no longer "identify" as part of that group for the purposes of the simulation engine.
5. Incompatible Emission Factor Version
In Simulations V2, Emission Factors available for selection in a lever (using the "Emission Factor Change" approach must belong to Emission Factor Versions allowed in the selected year of measurement in the Activities selection step. If the desired emission factor is not visible in the list, ensure that the Emission Factor version is enabled for the selected measurement year.