The Size Cluster Tab in Assortment Plan lets you view and adjust how sizes are distributed across your automated clusters for a choice offering. You can see your ideal size curves, override them at the cluster level, and toggle individual sizes on or off — all from a single grid.
Use Cases
You want to increase the size curve percentage for a specific size in one cluster (e.g., sell more M in your Web cluster).
You need to stop selling a size in a particular cluster (e.g., remove XS from Grade C stores).
You want to reactivate a previously excluded size and assign it a new curve value.
You need to review current inventory, actual sales, or bookings at the size × cluster level before making size curve decisions.
Accessing the Size Cluster Tab
Navigate to Assortment Plan, select a single choice offering, and click the Size Cluster tab in the offerings panel.
Note: The Size Cluster Tab only works when a single choice is selected. If you have multiple choices selected, you will see a message asking you to select just one.
Note: If the selected choice does not have a Size Curve assigned, the tab will display a message indicating that no size curve data is available. Assign a Size Curve to the choice first via the Offering Set tab.
Understanding the Grid
Rows in the grid are grouped by Channel → Cluster → Size. You can expand or collapse each group. Use the Attribute selector in the toolbar to show or hide optional columns, and save your preferred column layout using Views.
Below is an overview of the different columns.
Size
The size name (e.g., L, M, S, XL, XS, XXL). This column is always visible and read-only.
Current Inventory
Current inventory count at the cluster × size level. Use this to understand on-hand stock before making size curve adjustments.
Gross Sales Units (Act)
Actual gross sales units for the size within the cluster. This is read-only and reflects historical performance between the Launch Date and End Date of the Choice.
Gross Sales Units (Act) % of TTL
Actual gross sales expressed as a percentage of the total across all sizes in the cluster.
Gross Sales Units (Plan)
Planned gross sales units for the size within the cluster. This is read-only and reflects your current plan values.
Bookings Units
Bookings units by size within the cluster. This is read-only.
Bookings Units % of TTL
Bookings expressed as a percentage of the total across all sizes in the cluster.
Ideal Size Curve
The system-calculated size distribution percentage based on your Size Curve and Size Range inputs. This column is read-only and represents the baseline before any overrides.
Size Curve Override
Your custom override percentage. This column is editable — click into any cell and enter a new value. When you save, Toolio normalizes all override values in the cluster so they add up to 100%.
Active Size
A checkbox to include or exclude a size from the distribution. Unchecking this removes the size from the curve. Sizes that are deactivated appear grayed out in the grid.
Overriding Size Curves
You have several ways to adjust size curves on this screen:
Edit the Size Curve Override value — Click into the
Size Curve Overridecell for any size and enter a new percentage.Deactivate a size — Uncheck the
Active Sizecheckbox to remove a size from the distribution. The size will appear grayed out.Reactivate a size — Check the
Active Sizecheckbox on a previously deactivated size. It will start with a 0% curve that you can then override.
How Normalization Works
When you save your changes, Toolio treats all sizes in that cluster as overridden and normalizes the values so they add up to 100%. This means:
If you increase one size's percentage, other sizes in the same cluster will decrease proportionally.
If you deactivate a size, its percentage is redistributed across the remaining active sizes.
The normalization happens per cluster — changes to one cluster do not affect other clusters.
Users have several options to change their size curves on this screen. They can
uncheck a size,
override the size curve of a checked size,
check an unchecked size (with a 0% size curve) and then override its value.
Seeing the Impact in Size Plan
After saving your overrides, navigate to the Size Plan tab and trigger Generate Receipt from the menu to see how your size curve changes affect the receipt plan. The Size Plan will reflect the updated distribution
Before:
After (note that XS decreased due to no longer selling in Grade C stores and M selling more due to extra sales in Web cluster)
Removing Size Curve Overrides
To revert back to the original size curve based on your Size Curve and Size Range inputs:
Right-click on any cell in the
Size Curve Overridecolumn for the cluster you want to reset.Select
Delete Size Curve Overridesfrom the context menu.Confirm the action in the dialog that appears.
Note: This removes all size curve overrides for the entire cluster, not just the size you right-clicked on.
The grid will refresh and display the original ideal size curve values.
FAQs
Can I Override Sizes for Multiple Clusters at Once?
Each cluster's size curve is managed independently. You can make changes across multiple clusters before saving, but the normalization is applied per cluster.
What Happens if I Save Without Entering a Value for a Reactivated Size?
If you check Active Size on a previously excluded size but leave its override at 0%, it will remain at 0% after normalization. The other sizes' percentages will stay the same.
Why Do I See a Message Saying No Size Curve Data Is Available?
The selected choice does not have a Size Curve assigned. Go to the Offering Set tab and assign a Size Curve to the choice before using the Size Cluster tab.
Does the Delete Action Remove Overrides for Just One Size or the Whole Cluster?
Delete Size Curve Overrides removes all overrides for the entire cluster, not just the size you right-clicked on. You will see a confirmation dialog before this happens.