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V27.5 - Discount issues?

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Posted on by CW-05060949-0

Hello,

Is anyone aware of any issues where discount is being applied at invoice header level, however no discount has been applied to the order. We think it's originating at sales order stage, not from invoice discount setup or manual entry. The issue started occurring after the system was upgraded to V27.5.

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Teagen Boll 3,386 Super User 2026 Season 1 on at

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It may depend on your environment localization but I would check your sales and receivables setup page:

If that looks good you can always review your customer setup to see if there are discounts allowed to:

Last place I would check is your price lists. You may have discounts disabled:

Hopefully that helps.

Best,

Teagen Boll

Work: Catapult ERP

Social: LinkedIn

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Khushbu Rajvi. 23,132 Super User 2026 Season 1 on at

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I checked the v27.5 release notes. There are some discount/price-related fixes, but I do not see an exact hotfix matching the issue where an invoice header discount is automatically applied even though no discount was entered on the sales order.

https://support.microsoft.com/en-us/topic/update-27-5-for-microsoft-dynamics-365-business-central-2025-release-wave-2-application-build-27-5-46862-platform-build-27-0-46760-347c02f7-4410-4c97-a56c-5d487ea8663f

I would suggest first checking the standard invoice discount setup, customer invoice discount setup, sales discount setup, and any customization or event subscriber that may be recalculating discounts during sales order posting.

If any third-party extension or customization is installed, please test the same scenario in a new company or clean sandbox without those extensions. This will help confirm whether the issue is coming from standard Business Central or from a customization/third-party extension.

Also, if possible, upgrade or test the same scenario in a later cumulative update v28.

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Grigorios Mavrogeorgis 2,801 Super User 2026 Season 1 on at

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Hi,

i did not see this as a confirmed V27.5 bug anywhere yet, so i would rule out the normal discount path before blaming the upgrade. That sounds like the Invoice Discount to me, it comes from Cust. Invoice Discounts, search it in Tell Me. If there is a line for that customer or their invoice disc. code with Minimum Amount 0 and a percent, BC fill it automatically when the order recalcs, no manual step needed. Also worth checking the Calc. Inv. Discount toggle in Sales & Receivables Setup did not get enabled or changed during the upgrade.

On the customer card look at the Invoice Disc. Code field, by default it is the customer No. itself, so an old entry sitting there is easy to miss.
If all that is clean and it still applies on a fresh order with nothing set, then maybe platform side, log it with Microsoft with repro.

Glad to help - follow up if anything is unclear.
► If this solved it, marking it verified helps others too.
Regards,
Grigorios Mavrogeorgis
Business Central Consultant & AL Developer
Work: Gmsoft Limited
Blog: insidebusinesscentral
LinkedIn: linkedin.com/in/gregorymavrogeorgis

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YUN ZHU 102,476 Super User 2026 Season 1 on at

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Hi, or you can apply it manually.

Thanks.

ZHU

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OussamaSabbouh 18,383 Super User 2026 Season 1 on at

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Hello,
I would first avoid assuming this is a V27.5 bug unless you can reproduce it in a clean sandbox; in standard BC, header invoice discount can be calculated automatically from Sales & Receivables Setup > Calc. Inv. Discount, the customer’s Invoice Discount Code / Cust. Invoice Discounts, and only on sales lines where Allow Invoice Disc. is enabled, so check those fields on the original Sales Order lines and also check whether any extension/event subscriber is calling invoice discount calculation during release/posting. If the discount appears on the order only after a specific action, test with personalization showing Allow Invoice Disc., Inv. Discount Amount, and Invoice Discount %, then compare before/after Release, Make Invoice, and Post Preview.
Regards,
Oussama Sabbouh.

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Mansi Soni 10,224 Super User 2026 Season 1 on at

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Hello,

Hoping that you have all the required setup configured in business central as there is no such information related to bug or hotfixes in update!

https://community.dynamics.com/blogs/post/?postid=a0f60c0d-1800-4369-951c-b21ea9b1e746

Hope this answer helps you!

If this answer helps you, kindly Mark it as verified answer!

Regards,
Mansi Soni

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Alfredo-I-D365T 21 on at

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Invoice discounts are applied to the sales header before posting. That means the routine could be triggered for sales orders too, but it requires an extension or a job queue.

Since the problem appeared aften un upgrade, I would check customisations/ automation that runs on the invoice discount setup.

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