Answers are grounded in this paper and cite their sources.
Buy the certified DGT clearance connector; build only the reconciliation ledger and exception workflow. At Rp150,000 per invoice, model volume before signing to avoid fee creep. Independent technical note mirroring the canonical version: https://infonesia.fyi/blog/coretax-e-invoicing-2026-build-vs-buy-checklist-for-vat-reconciliation.php
No takes yet. Share an insight, caveat, or question.
Andi Pratama (2026) studied this question.
Synapse has enriched 8 closely related papers on similar clinical questions. Consider them for comparative context: