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title: First Allocation
description: Logic Overview 4:54 Learn about the probabilistic calculation that determines which location or channel has the highest probability of an additional sale for each SKU to be introduced. 3:09 Once deman
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# First Allocation

**Logic Overview**

- Demand Forecasting

<iframe class="hs-responsive-embed-iframe" height="360" src="https://player.vimeo.com/video/473740683" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none;" width="640" allowfullscreen data-service="vimeo"></iframe>

**4:54**

Learn about the probabilistic calculation that determines which location or channel has the highest probability of an additional sale for each SKU to be introduced.

- Optimization

<iframe class="hs-responsive-embed-iframe" height="360" src="https://player.vimeo.com/video/473741635" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none;" width="640" allowfullscreen data-service="vimeo"></iframe>

**3:09**

Once demand is calculated for each SKU in each store, Global Optimization comes in. Here we'll understand how Nextail makes the best use of the available stock.

**Launching a scenario**

<iframe class="hs-responsive-embed-iframe" height="360" src="https://player.vimeo.com/video/480836092" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none;" width="640" allowfullscreen data-service="vimeo"></iframe>

**5:04**

Let's run a scenario with Nextail, selecting the scope of products, reviewing the comparables, selecting or assigning stores and to finalize, set up a series of parameters before its calculated.

**Reviewing a scenario**

<iframe class="hs-responsive-embed-iframe" height="360" src="https://player.vimeo.com/video/480840907" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none;" width="640" allowfullscreen data-service="vimeo"></iframe>

**4:31**

Review the results of a scenario you have already launched. With this video, you will be able to analyze and adjust the recommendations for sending units to the stores and remaining stock in the warehouse.

**Pre-allocation**

<iframe class="hs-responsive-embed-iframe" height="360" src="https://player.vimeo.com/video/513775576" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none;" width="640" allowfullscreen data-service="vimeo"></iframe>

**1:57**

Learn how to run a pre-allocation when the stock is not yet available in the warehouse. The pre-allocation process in Nextail is really similar to the allocation process that you have just seen in the previous videos. The only step that changes is the first one where you select the products to allocate. 

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