Multi-Entity Business Central with ZATCA E-Invoicing for a Saudi Business GroupCase Study

Consolidating four entities that each used different accounting tools and charts of accounts took the finance team close to two weeks every reporting period, and intercompany balances rarely matched without lengthy investigation. Leadership had no timely, group-wide view of performance across the industrial and consultancy divisions. On top of this, ZATCA's Phase 2 e-invoicing requirements demanded that invoices be generated in a specific format, cryptographically stamped, and cleared with the tax authority in near real time — something none of the legacy systems could do. The group needed all of this delivered without disrupting ongoing operations, and within an 18-week window to align with a compliance deadline.

PapaSiddhi implemented Microsoft Business Central across all four entities on a single tenant, with a standardised, group-wide chart of accounts and consistent dimensions for division-level reporting. We configured automated intercompany transactions and a consolidation company so group figures are produced from live data rather than manual spreadsheets. For compliance, our developers built a ZATCA e-invoicing integration using AL and Power Automate, connecting Business Central directly to the ZATCA platform so invoices are generated in the required format, stamped, and cleared automatically for every entity. Power BI dashboards were built on top of the consolidated data to give leadership real-time visibility across divisions. We migrated historical financial data for all four entities, reconciled opening balances, ran the ZATCA integration through the required validation, and delivered phased training so each entity's finance team was ready ahead of go-live.