Egypt's Tax Authority (ETA) mandates that registered businesses clear sales invoices and issue e-receipts through its national platform before they are legally valid. This connector closes that gap directly inside Dynamics 365 Business Central, so your finance team keeps working in Posted Sales Invoices and the BC POS without bolting on a separate portal or manual upload spreadsheet.

This is an honest build-to-order engagement, not an instant Microsoft AppSource download. ECOSIRE builds the connector as a per-tenant AL extension tailored to your chart of accounts, tax setup, and item master, then installs it on your Business Central environment (cloud or on-prem) and supports it after go-live. There is no public app link to click — we deliver and deploy.

Under the hood the extension uses table and page extensions on Sales Invoice, Sales Cr. Memo, and POS receipt documents, plus event subscribers on the OnAfterPostSalesDoc publishers to assemble the ETA JSON document, sign it, and submit it to the ETA REST API. A job queue entry handles retries and polls clearance status, writing the returned UUID, submission UUID, and long/short ID back onto the source document. The connector authenticates to ETA via the eInvoicing identity (client ID/secret) and manages the document digital signature (CADES / USB-token or HSM signing) required for Phase 2 clearance.

Item lines are mapped to GS1 (GTIN) or EGS codes through a configurable mapping table, with bilingual Arabic/English invoice output for both the cleared document and the human-readable PDF. Dedicated permission sets scope who can submit and resubmit. We hand over with a workflow walkthrough, the AL source for your tenant, and a support window. Standard delivery is roughly 3–5 weeks depending on your ETA registration status and item-coding readiness.