Document amount on Purchase Invoice Header
Business Central 2025 wave 1 adds a feature to compare document-level totals with line-level amounts on purchase invoices, preventing posting discrepancies and ensuring data accuracy. The feature requires setup in Purchases & Payables and validates that header amounts match line totals, including VAT considerations.

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Key points
- Feature compares Doc. Amount Incl. Tax field against sum of tax amounts on purchase lines during posting
- Must be enabled in Purchases & Payables Setup before fields appear on purchase invoices
- Users enter total amount in Doc. Amount Incl. Tax field; Doc. Amount Tax auto-calculates from lines
- Posting fails with error if amounts don’t match, preventing incorrect document entries
- VAT Difference allowance setting is factored into the validation logic
AL objects mentioned
As named in the post. A name that matches one object page by exact type and name links to it; the others stay as named.
- table “Purchase Invoice Header”
- table 312 “Purchases & Payables Setup”
Not found in BC28-30: table “Purchase Invoice Header”.
Context
- Features: Document Amount Comparison, Doc. Amount Incl. Tax Validation, Tax Amount Verification, Purchase Invoice Header Validation
- Versions: 2025 wave 1
Source: Discover MS BC - Bert Verbeek, community blog. Summary, key points and quotes are derived (CONTENT-NOTICE.md); read the original for the full text.