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Portugal›Validation stack builder
CIUS-PT, SAF-T(PT), QR / ATCUD

Validation stack builder

Build the ordered syntax, semantic, national, security and authority checks needed for a selected country.

PTEN

Validation stack builder

Build the ordered syntax, semantic, national, security and authority checks needed for a selected country.

Processed in your browserNo file storage

Results

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1. File integrity

Readable bytes, expected extension, no truncation, stable SHA-256 evidence.

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2. Syntax

Parse and apply the relevant syntax schema: UBL, SAF-T.

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3. Semantic business rules

Check invoice parties, dates, lines, taxes, totals, references and payment data.

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4. Country profile

CIUS-PT, SAF-T(PT), QR / ATCUD format or profile signals · Local tax/business identifier structure · Core invoice fields and arithmetic consistency

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5. Identity and routing

Validate endpoint schemes and published document capability.

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6. Security

Review QR, hash, signature or certificate requirements.

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7. Official outcome

Submit or route through Tax reporting, certified billing software or structured exchange depending on transaction. and preserve the official response.

EN 16931Peppol BIS BillingCIUS-PT
The stack defines the implementation order. Full official schema artefacts, credentials, certificates and transport adapters must be integrated separately.
Methodology

Validation stack builder · Portugal

Build the ordered validation layers needed for a country, from file integrity and syntax through security and official outcome.

What the tool checks

  • File and syntax layer
  • Semantic and national rules
  • Identity and security
  • Authority or network response
What it cannot confirm

Technical check only

  • Official artefacts and credentials are not bundled
  • The generated stack is an implementation plan
Requirements Official sources