How to Stop Counter Sale if Inventory is Not Available in D365 Retail POS?

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Posted on by Ashutosh Parasar

Hi Community,

We are currently implementing Dynamics 365 Finance & Operations with Retail POS, and facing a challenge related to controlling inventory availability during POS transactions.

Business Requirement:
We want to prevent sales at the POS if the item is not available in stock. In other words, the system should not allow counter sales when the on-hand inventory is zero or insufficient.

What We Tried:

Disabled negative inventory at the Item Model Group level (Negative inventory = No)
Also checked the Warehouse parameters, and ensured that negative inventory is not allowed

However, despite this configuration, D365 Retail POS still allows the item to be sold.
Expected Behaviour:

When the POS tries to sell an item that has no stock in the assigned warehouse/store, the system should block the sale or show a warning/error preventing the cashier from proceeding.

Question:

Is there any standard configuration or workaround available in D365 Retail and Commerce to restrict POS sales based on inventory availability?
How can we enforce real-time validation of inventory during a POS transaction?
Is this only possible through customization or Real-Time Service (RTS) checks?

Looking forward to your suggestions or experiences on handling this scenario.
Thanks in advance!

Best regards,
Ashutosh

Categories:

Dynamics 365 Commerce

Dynamics 365 Supply Chain Management

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Laurens vd Tang 4,700 Super User 2026 Season 1 on at

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Hello Ashutosh,

Have you already tried the parameter 'Quantity becomes negative'?

Best regards,

Laurens van der Tang

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S Gopi Krishna 673 Super User 2026 Season 1 on at

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Hello @Ashutosh Parasar,

Currently the OOB POS is not capable to check inventory when performing a retail transaction, the only way to support this is via a customization.

You can extend RTS but this would impact the performance if the RTS calls take time to execute. The better way is to utilize the IVS [Inventory Visibility Service] add-in and use the IVS API to check the inventory before selling.

Also there is a sample for this customization in GitHub published by the Fasttrack team, you can give it a try and choose the suitable route.

https://github.com/microsoft/Dynamics-365-FastTrack-Implementation-Assets/tree/master/Commerce/NegativeInventoryCheck

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Ashutosh Parasar 88 on at

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Hello @S Gopi Krishna,

You’re absolutely right — since there’s no standard functionality available to prevent negative sales in POS, a customisation would indeed be the appropriate solution.

@Laurens vd Tang

I’ve also tested this scenario — the system creates a negative order (a return order) if that button is check to 'Yes'. This is not stopping negative sales.

Thank you all for your valuable inputs and feedback.

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