Shopify Inventory Automation: Unlocking 'Days of Inventory Remaining' in Flow

Hey everyone! As a Shopify expert who spends a lot of time digging through community discussions, I often see recurring themes that really resonate with store owners. One topic that recently popped up and sparked some great insights was all about leveraging Shopify's 'days of inventory remaining' metric for smarter, automated inventory management within Shopify Flow.

It's a common pain point, right? You're juggling sales, marketing, customer service, and then there's inventory. Knowing exactly when to reorder, and getting those alerts automatically, can be a game-changer. Let's dive into what the community had to say about making this happen.

The Core Challenge: Bridging Analytics and Automation

The discussion kicked off with Jf6, who highlighted a crucial gap: Shopify Analytics already calculates 'days of inventory remaining' for each product variant. You can see it clearly in the "Products by days of inventory remaining" report, where it uses a 30-day sales velocity to estimate. The problem? This super useful metric isn't directly accessible in Shopify Flow as a trigger or condition.

Imagine the possibilities! Jf6's ideal scenario was a Flow trigger that fires when a product variant's inventory drops below a certain threshold – say, "less than 35 days" of stock. This would allow for automated restock alert emails, filtered by collection, based on actual sales velocity rather than just a raw unit count. It's a fantastic idea because the data is already there within Shopify; it just needs to be surfaced in Flow to make automation truly powerful.

Understanding Shopify's Built-in Inventory Estimates

Before we jump into solutions, it's worth understanding the nuances of Shopify's native 'days of inventory remaining' calculation. Ugurcan chimed in, pointing out that this particular estimate is based purely on the last 30 days of sales. While helpful, it's essentially a snapshot and doesn't account for bigger picture factors.

Think about it: seasonality, upcoming promotions, or even your supplier's lead times – none of these are factored into that basic 30-day calculation. As Ugurcan rightly put it, "it is not even taking a simple lead time into account when calculating your restock point." This limitation means relying solely on this metric for critical reorder decisions might not always give you the full, accurate picture, especially for businesses with fluctuating demand.

The Dream: A Direct Flow Trigger (and How to Ask for It)

So, what's the most straightforward path to getting this functionality? As tim_1 wisely suggested, the best way to get new features added to Shopify is to contact support directly and suggest it. Shopify listens to its merchants, and enough voices requesting the same thing can definitely move the needle. If you're passionate about having "days of inventory remaining" as a native Flow trigger, make your voice heard!

The Tech-Savvy Workaround: Shopify Flow & GraphQL API

Now, for those of you who love to get a little more hands-on, tim_1 also shared a powerful workaround. While there's no direct way to pull report data into Flow, you can achieve something similar by making a direct call to the GraphQL API using Flow's "Send HTTP request" action. This allows you to fetch report data, process it, and then use that information to send notifications or even update a Google Sheet.

It's a more advanced setup, and as tim_1 noted, "full setup is a bit too complex for a forum post." However, the concept is incredibly powerful for custom automations. Here's a glimpse of what such a Flow might look like, as shared by tim_1 for fetching "last month bestsellers" – a very similar principle to what you'd need for inventory data:

How this API workaround generally works (conceptually):

1. Schedule Your Flow: Set up a daily or weekly scheduled trigger in Shopify Flow.
2. "Send HTTP request" Action: This is where the magic happens. You'll configure a POST request to Shopify's GraphQL Admin API endpoint.
3. Craft Your GraphQL Query: You'll write a GraphQL query to fetch the specific inventory data you need. This would involve querying product variants and potentially their sales history to calculate 'days of inventory remaining' on your end, or to retrieve existing report data if exposed via API.
4. Process the Response: Once you get the data back from the API (usually in JSON format), you'd use Flow's built-in actions or custom logic (like JavaScript in a "Code" action, if available in your Flow version) to parse the data and identify products below your desired threshold.
5. Take Action: Based on your processed data, you can then trigger subsequent actions – send an email, create a task, update a spreadsheet, or even tag products.

While this requires a bit of technical know-how (especially with GraphQL), it demonstrates that custom, powerful inventory automations are indeed possible within Flow if you're willing to dive into the API.

The App Advantage: Robust Inventory Forecasting

Given the limitations of Shopify's basic 'days of inventory remaining' calculation, Ugurcan's recommendation for third-party apps is a solid one for many businesses. Apps like Pasilobus Stock Control are specifically designed to handle more complex inventory forecasting.

These apps typically go beyond a simple 30-day average. They factor in seasonality, lead times, safety stock levels, and even multiple locations to give you a much more accurate picture of your restock needs. They often come with features like barcode counts, demand forecasting, reorder alerts, and purchase order management, providing a comprehensive solution that's often easier to set up and manage than a custom API integration.

Choosing an app is often the best route if your inventory needs are complex, if you lack the technical resources for API integration, or if you simply want a more "out-of-the-box" solution with dedicated support.

Wrapping It Up: Your Inventory, Your Choice

So, where does this leave us? The community discussion perfectly illustrates that while Shopify provides fantastic tools, there are often layers to uncover. For 'days of inventory remaining' in Shopify Flow, you've got a few paths:

• The "Ask Shopify" Path: Advocate for the feature directly to Shopify Support. This is the simplest long-term solution.
• The "DIY API" Path: If you're technically inclined, explore the GraphQL API and "Send HTTP request" action in Flow for custom, powerful automations.
• The "App Power" Path: For robust, intelligent forecasting that considers all the variables, a specialized inventory app is often your best bet.

Each option has its merits, and the best choice really depends on your business's specific needs, your technical comfort level, and your budget. What's clear is that the desire for smarter, more automated inventory management is strong, and our community is always finding creative ways to get there. Keep those discussions going!