Inventory how-to

How to plan inventory for influencer campaigns

Treat an influencer campaign like a planned demand spike, not normal sales.

Short answer: Treat an influencer campaign like a planned demand spike, not normal sales. You need to estimate the extra units the campaign could sell, add that to your normal reorder point, and get stock in before the post goes live, because supplier lead time does not shrink just because the campaign date is fixed.

Why normal forecasts fall short here

A 28-day sales average will not catch a traffic spike from a single post or story. If you rely only on that average, your reorder point will be too low and you will sell out mid-campaign. You need to manually add expected campaign demand on top of the baseline forecast.

Estimate the spike before you order

Look at past campaigns of similar size, or ask the influencer for average engagement and past conversion if they have run promotions before. Turn that into a rough unit estimate per SKU featured. Be clear this is a guess, not a forecast, and plan your buffer stock accordingly.

Work backwards from the post date

Start from the day the content goes live and subtract your supplier's lead time plus the time you need to receive and shelve stock. That gives you the latest date to place the order. If that date has already passed, either delay the campaign or accept the risk of running out.

Protect normal customers too

If the featured SKU also sells through regular channels, make sure the campaign buffer is on top of your usual safety stock, not instead of it. Running out during a campaign and starving your regular buyers at the same time is the worst outcome.

Step by step

  1. List every SKU the influencer will feature and check current on-hand and on-order quantities.
  2. Estimate extra units needed for the campaign using past campaign data or a conservative guess.
  3. Add that estimate to your normal reorder point for each SKU to get a campaign reorder point.
  4. Calculate the order-by date using supplier lead time plus safety days, counting back from the campaign start date.
  5. Place the order early enough to cover both the lead time and any receiving or processing time.
  6. Monitor sales daily once the campaign starts and be ready to place a rush reorder if the response is bigger than expected.
  7. After the campaign, note the actual uplift so your next estimate is more accurate.

Worked example

A store expects a campaign to sell 300 extra units of a $25 candle over 5 days, on top of normal daily sales of 10 units. Normal 5-day demand is 50 units, so total expected demand is 350 units. Current on-hand is 80 units and nothing is on order, so the store needs to order 270 units. Supplier lead time is 14 days, so the order must go out at least 14 days before the campaign start date, or earlier if the store wants extra safety days.

How SteadyShelf helps

SteadyShelf forecasts from recent sales history, so it will not predict an influencer spike on its own. You still need to estimate the extra demand yourself and either raise the safety days for that SKU temporarily or place a manual order ahead of the campaign using the lead time shown for that supplier.

$29/month flat, unlimited products and suppliers, 30-day free trial. Run the numbers now with the free reorder point calculator.

SteadyShelf is launching on the Shopify App Store. Join early access to get the install link first.

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FAQ

Should I increase safety stock for the SKU in SteadyShelf before the campaign?

Yes, that is a reasonable way to use the tool. Temporarily raising safety days for that SKU will push its order-by date earlier and increase the suggested order quantity, which helps cover part of the expected spike automatically. Just remember to lower it back after the campaign so future orders do not stay inflated.

What if the influencer campaign is for a brand new product with no sales history?

With no sales history, there is nothing for any forecasting tool to work from, including SteadyShelf. You will need to set the initial order quantity manually based on your campaign estimate, then let normal forecasting take over once real sales data starts coming in after launch.

Let SteadyShelf do this math for every SKU

Order-by dates per supplier, seasonal forecasts and draft POs for your Shopify store. $29/month after a 30-day free trial.

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