Dynamics Community Forum Thread Details

Direct Unit Cost Incl. VAT Recalculates Upon Setting Posting Groups in Purchase Invoice Lines (v28)

Hi everyone,

We are currently testing our environment prior to the Business Central v28 (Wave) update and noticed a behavior that appears to be different from v27.

In a Purchase Invoice, when a vendor is configured with Prices Including VAT, we enter the Direct Unit Cost Incl. VAT first and then set or change the Gen. Prod. Posting Group and/or VAT Prod. Posting Group on the purchase line. Upon doing so, the Direct Unit Cost Incl. VAT is automatically recalculated by the system.

(Image 1 shows the initial Direct Unit Cost Incl. VAT. Image 2 shows how it changed after adding the posting groups.)

This behavior does not occur in our v27 environment, where the entered VAT-inclusive cost remains unchanged when the posting groups are updated.

Has anyone else encountered this change in v28? Is this an intended behavior, a known issue, or is there a setup or hotfix available to prevent the automatic recalculation of the VAT-inclusive cost?

Any insights would be greatly appreciated.

Thank you!

Categories:

Dynamics 365 Business Central

Hello,

Yes, this is a confirmed Business Central v28 issue, not a setup change. Microsoft specifically fixed IDs 634124 and 634675 in Update 28.2, described as inconsistent Direct Unit Cost Including VAT calculation on purchase invoices when the VAT Prod. Posting Group is changed for line type G/L Account, which matches your screenshots exactly. The fix is included in 28.2 (Application Build 28.2.51034) and therefore in later cumulative updates such as 28.3. So if your test environment is still on 28.0/28.1, update to 28.2 or later and retest; if you're already on 28.2+, check the exact application build and test without extensions, and if it still reproduces I would raise it with Microsoft Support.

Regards,
Oussama Sabbouh

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