Update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 (Application Build 26.12.48244, Platform Build 26.0.48120)

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Dynamics 365 Business Central on-premises 2025 release wave 1, version 26

Overview

This update replaces previously released updates. You should always install the latest update.

After you install this hotfix, you might have to update your license to gain access to new objects that are included in this or a previous update. (This applies only to customer licenses.)

For a list of updates that were released for Microsoft Dynamics 365 Business Central 2025 Release Wave 1, see released updates for Microsoft Dynamics 365 Business Central 2025 Release Wave 1. Updates are intended for new and existing customers who are running Microsoft Dynamics Released Updates for Microsoft Dynamics 365 Business Central 2025 Release Wave 1. 

Important

We recommend that you contact your Microsoft Dynamics Partner before you install hotfixes or updates. It is important to verify that your environment is compatible with the hotfixes or updates that will be installed. A hotfix or update may cause interoperability issues with customizations and third-party products that work together with your Microsoft Dynamics 365 Business Central solution.

Problems that are resolved in this update

The following problems are resolved in this update.

Platform hotfixes

ID Title
623315 Addressing incorrect date filtering for Czech regional settings.
622602 Addresses a script error by ensuring the correct control is targeted when calling save Value during recording.

Application hotfixes

ID Title Functional Area
593897 Correct the handling of Option-type attributes on the Item Category Card and ensure proper data integrity. Inventory
620885 Fixes an authentication gap in the Admin API by enforcing proper Windows credential validation. Security
621106 Export Payment Journal. Finance
622277 Addressing the issue where the system ignored the user's selection to keep the existing sell-to customer when copying a posted document with the "Include Header" option Sales
622688 Security/privacy fix redacts sensitive telemetry data from form metadata and custom properties. Security
622899 API enhancement to expose ExceptionType for improved troubleshooting of permission errors. Sales
623229 Addressing mobile app scrolling issues in Business Central On-Premises. Sales
624421 Resolve the XML rejection by tax authorities due to the missing BenutzerKontoID element. VAT/Sales Tax/Intrastat
624776 Fixes incorrect behavior in the cache-hit path of TryUpdateUserGroupsFromTenantCache. Finance
625397 Reverts recent OCV feedback changes to resolve browser performance issues. Administration
625888 Addresses an issue by preventing errors when users don't have access to an environment during company queries. Administration
626324 Security update and dependency upgrade for the Outlook Add-In. Security
626149 Addressing the disappearing row issue in a sorted list. Inventory
611978 Addressing incorrect replanning results for orders with a dampener period in multi-level BOM scenarios. Inventory

Local application hotfixes

CZ - Czechia

ID Title Functional Area
623026 Ensures the "Zero Src. Curr. Amount" flag is correctly set during the general ledger posting process in the Adjust Exchange Rates report. Finance
624847 Fix to correctly initialize non-deductible VAT in the install codeunit. Finance
624935 Addressing the incorrect behavior of the "Items without Change" parameter in the Calculate Inventory report. Inventory

DK - Denmark

ID Title Functional Area
608481 Partial invoicing retains incoming document attachments and refines the document removal logic across Purchase Order pages. Purchase

US - United States

ID Title Functional Area
621496 The US Tax Amount is rounded incorrectly and appears inconsistent when a Service Order contains previous or different tax groups compared to the Posted Service Order. Finance

Resolution

Which hotfix package to download

This update has multiple hotfix packages. Select and download one of the following packages depending on the country version of your Microsoft Dynamics 365 Business Central 2025 database.

Country Hotfix package
AT - Austria Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 AT package
AU - Australia Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 AU package
BE - Belgium Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 BE package
CA - Canada Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 CA package
CH - Switzerland Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 CH package
CZ - Czechia Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 CZ package
DE - Germany Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 DE package
DK - Denmark Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 DK package
ES - Spain Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 ES package
FI - Finland Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 FI package
FR - France Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 FR package
GB - United Kingdom Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 GB package
IN - India Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 IN package
IS - Iceland Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 IS package
IT - Italy Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 IT package
MX - Mexico Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 MX package
NL - Netherlands Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 NL package
NO - Norway Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 NO package
NZ - New Zealand Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 NZ package
RU - Russia Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 RU package
SE - Sweden Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 SE package
US - United States Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 US package
All other countries Download update 26.12 for Microsoft Dynamics 365 Business Central 2025 Release Wave 1 W1 package

How to install a Microsoft Dynamics 365 Business Central on-premises 2025 Release Wave 1 update

See How to install a Microsoft Dynamics 365 Business Central 2025 Release Wave 1 update.

Prerequisites

You must have Microsoft Dynamics 365 Business Central 2025 Release Wave 1 installed to apply this hotfix.

More information

See more information about software update terminology and Microsoft Dynamics 365 Business Central 2025 Release Wave 1.

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.