Greece Invoices (AADE myDATA national API)

Issue a Greek electronic invoice (τιμολόγιο) into the national AADE myDATA platform. Builds an AadeBookInvoiceType <InvoicesDoc> XML and transmits it to /SendInvoices under your own AADE credentials, returning the official MARK (Μοναδικός Αριθμός Καταχώρησης / unique registration number), invoice UID and QR url. Bring your own credentials as headers: x-aade-user-id (your myDATA user id) and x-aade-subscription-key (your Ocp-Apim subscription key) — both issued by the AADE myDATA portal. Header x…

Look up one of your own transmitted myDATA documents by its MARK. Calls /RequestTransmittedDocs, which returns your transmitted docs with a MARK greater than the value you pass — so this tool requests from MARK-1 and reports whether the exact MARK you asked for was found (found=true means AADE has it registered). Pass mark=0 to list your transmitted documents from the beginning. Safe to call anytime (read-only).