Thank you so much for the quick response! Here are the details regarding your questions:
1. Integration Type
We are using the standard D365 Invoice Capture integration to transfer our invoices to the vendor invoice journals. There are no customization or custom developments involved in this process.
2. Sales Tax Configuration & Amount Origin
Amount Origin: The gross amount is indeed coming directly from Invoice Capture. In the Invoice Capture side-by-side viewer, under the header data, the field Total invoice amount is correctly recognized as the Gross amount, and Total Tax contains the VAT.
During Transfer: When hitting "Transfer", Invoice Capture sends this Gross amount (Total invoice amount) as the voucher line amount.
Tax Setup: In D365, the Sales tax groups and Item sales tax groups are determined automatically based on our Vendor and Main Account defaults. However, because the journal doesn't currently treat the incoming transfer amount as "inclusive of tax", D365 does not recalculate it backward to find the Net amount - it simply uses the transferred Gross value.
3. Version Information
Dynamics 365 Finance: Installed product version : 10.0.47 (10.0.2527.142), Installed platform version : Update71 (7.0.7858.121)
Invoice Capture: Server version 9.2.26063.00162 / Client version: 1.4.12109-2606.3 (running via the Power Platform solution).
I hope this helps clarify our setup. Looking forward to your guidance on where to find the journal mapping and how to handle the Gross-to-Net logic!