Validate an electronic invoice
Check syntax, schema, business rules, code lists, national rules and authority acceptance in the correct order.
Task-based navigation
Electronic invoice workflows
Start with the outcome you need, not a tool name. Each workflow connects country research, format profiles, browser utilities and the official verification boundary.
View an XML or JSON invoice
Turn structured invoice data into a readable business view without replacing the authoritative source file.
Convert invoice XML to readable PDF
Create a readable representation from UBL, CII, FatturaPA, KSeF or other supported structured invoice data.
Generate a structured invoice draft
Create test UBL or JSON drafts, map required fields and validate before using an official submission channel.
Convert between invoice formats
Map semantic invoice fields between UBL, CII, JSON and country profiles while preserving meaning and documenting losses.
Verify invoice acceptance or cancellation status
Find the correct official authority or network route for UUID, IRN, CUFE, access key, UPO, receipt or participant status.
Check tax and business identifiers
Validate local structure and checksum first, then use the proper official registry when live status matters.
Find the e-invoicing mandate that applies
Assess B2B, B2G, B2C, domestic, cross-border, turnover, company-size and implementation-wave context.
Integrate an e-invoicing API
Design payloads, authentication, idempotency, status polling, webhooks, retries and audit evidence for a national or provider API.
Resolve an invoice rejection
Decode the response, find the correct rule version, repair the source data and resubmit without losing audit history.
Migrate an invoice schema version
Compare releases, map renamed fields and code lists, regenerate samples and validate the new target profile.
Test Peppol readiness
Check participant identifiers, document capability, profile IDs and local business rules before routing through an access point.
Extract embedded invoice XML
Find and recover embedded Factur-X or ZUGFeRD XML and inspect attachment metadata from hybrid invoice files.
Map ERP fields to e-invoice terms
Create a traceable mapping from ERP tables and API fields to invoice business terms, syntax paths and country extensions.
Create and validate credit notes
Link the preceding invoice, choose reason codes, calculate corrected amounts and use the correct document profile.
Validate a self-billing invoice
Check the self-billing agreement, supplier/customer role inversion, profile, tax responsibility and recipient capability.