For necessary background, please preread Supply Risk and Offset Explained before proceeding with this article.
Purpose
This article explains how to open and interpret the Supplier Performance tab on the item Inquiry screen. It shows where to view the data used to calculate Supply Risk and Offset values, including lead time and order fill performance.
Step 1: Open the Supplier Performance Tab
Navigate to the Inquiry screen for the item you wish to investigate.
Select the Supplier Performance tab.
The tab displays detailed records of supplier delivery performance over time.
Step 2: Review Lead Time Performance
In the Lead Time Performance chart, each bar represents one delivery, showing how actual lead times compare with the configured Planning Lead Time.
Interpret the colors as follows:
Purple bars: Early deliveries
Green bar: On-time delivery
Gold bars: Late deliveries
A consistent pattern of green bars indicates a stable and predictable supplier. Frequent gold bars suggest instability and possible late replenishment.
Step 3: Review Supply Performance
The Supply Performance chart shows how the quantities received compare with the quantities ordered.
Interpret the colors as follows:
Purple bars: Deliveries short in quantity
Green bar: Full deliveries
Gold bars: Deliveries exceeding the ordered quantity
Consistent green bars reflect reliable order fulfillment. Repeated purple or gold bars indicate unstable supply performance, which increases Supply Risk and may trigger Offset adjustments.
Step 4: View and Interpret the Table Data
Click the Table button at the top of the tab to switch from the chart to the detailed data view.
The table lists every delivery record used in the supplier performance calculation, showing:
Supplier: The supplier name associated with that delivery.
Order Date: The date when the purchase order was raised.
Due Date: The date when the goods were expected to arrive.
Receipt Date: The date when the goods were received.
Measured Lead Time: The number of days between the Order Date and the Receipt Date. This is the actual delivery duration.
Ordered: The quantity placed for that delivery line.
Received: The actual quantity received for that delivery line.
Used: A check mark indicates that this delivery was included in Average Lead Time and Supply Risk calculations.
Some rows may appear greyed out. These deliveries are excluded from the calculations used to measure supplier reliability and average lead time.
➜ For more on this topic, read: Measured vs Average Lead Time Explained.
Step 5: Identify Supplier Trends
Use both the charts and table to spot consistent supplier behavior:
Stable lead times and full deliveries indicate low Supply Risk.
Erratic or partial deliveries suggest unstable supply and higher safety stock requirements.
Sudden shifts in performance often indicate either supplier issues or inaccurate Planning Lead Times.
Step 6: Relate Performance to Supply Risk and Offset
The graphs and table in this tab provide the data that drives the Supply Risk and Offset values shown in the Safety Stock panel.
Use this information to confirm whether elevated risk values reflect genuine supplier variability or inaccurate lead time or configuration data.
Step 8: Next Steps
Once you have reviewed a supplier’s performance at the item level, you can continue your investigation in two ways:
Supplier Screen: View all items supplied by this vendor to see whether performance issues are isolated or consistent across the range.
Supplier Performance Feature: Access the dedicated module for deeper analysis of supplier reliability, aggregated performance metrics, and historical trends.
➜ For more on this topic, read: Supplier Performance Feature
⚠️ Watchouts
Preferred supplier scope: The Supplier Performance tab only reflects deliveries from the preferred supplier assigned to that item and location. Deliveries from other suppliers are excluded.
Excluded data: Blanket orders and extreme outliers are filtered from this view to avoid misleading averages. If exclusions appear excessive, review the purchase order data for accuracy.
💡 Tips
Included entries: If you find that the excluded (greyed-out) deliveries do not align with your expectations, review your configuration settings or ask someone with the correct access to do so. Adjusting these parameters ensures the app measures supplier performance using the most representative data.
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