Home > PDF Reports > Charts > Inventory Accuracy Scorecard > IRA Substituted
In the example below, there is high enough Completion for a good IRA sample, however, there was a mismatch between the sample counted and its expected value. Mango calculates it own internal IRA (based on the percentage of SKUs rung to negative quantity-on-hand at checkout) and compares it to the Count Sheet sample returned. If the mismatch is big enough then it a substitution alert will show and the store's counted IRA will be substituted with Mango's calculated IRA. The substituted sample(s) will be shown as an open diamond in the red IRA trendline. This behavior helps protect stores from measuring an incorrect IRA caused by lack of quantity-on-hand variance research or, in some cases, lazy (lunchroom counts) or "optimistic" counting to pad IRA. Sometimes a validation alert can be caused by other factors.
How to investigate IRA validation issues
The most common reason for IRA substitution is due to a high negative QOH percentage coupled with very high reported accuracy. In the example above, the store reported an accuracy of 96% on the 55 Random Count SKU (53 of 55 with no variance) but is experiencing a high negative QOH percentage, 10%. It's very hard to say you're a store that's 96% accurate but also having so many SKUs go negative.
Research Negative QOH
If the negative quantity-on-hand SKUs all look reasonable then continue to the next step. If there is a lot of noise in your negative QOH's then try to resolve the receiving issue or other store procedure causing the negative QOH's.