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ERP Data Migration Company in UAE: Checklist, Risks & Realistic Timelines (2026)

Quick Answer: A UAE ERP data migration project moves master data, open transactions, and statutory history from a legacy or cloud ERP into a target system (such as TallyPrime) while preserving UAE VAT audit trails, corporate-tax readiness, and eInvoicing compliance. Typical engagements run 6–14 weeks depending on entity count, ledger complexity, and history depth, and are priced as a fixed fee after a paid discovery workshop.

When a mid-market group in Dubai or Abu Dhabi evaluates an ERP data migration company Dubai, the conversation quickly shifts from "can you move the data?" to "will my VAT returns still reconcile, will the auditors sign off, and can we cut over without stopping despatches?" TACHY is an implementation and data-automation partner that answers those questions with a repeatable, controls-first methodology — not a one-off script.

Why UAE Regulatory Context Changes the Migration Scope

UAE corporate tax (CT) and the Ministry of Finance (MoF) eInvoicing framework (PINT AE) add two hard constraints that do not exist in a pure domestic Indian migration:

VAT & CT Audit Trail Integrity — Every posted invoice, credit note, and journal must retain the original TRN, supply date, and tax-code mapping so that FTA audit requests (VAT 201) and future CT returns (CT 2024) can be reproduced from the target system without manual rework.
eInvoicing Readiness — The MoF’s phased mandate requires structured invoice data (PEPPOL / PINT AE). If your migration drops custom Z-fields that hold the invoice reference number (IRN) or QR-code payload, you will fail the onboarding validation with your chosen Access Point provider. TACHY maps those fields during the design phase; we do not act as an accredited service provider, but we ensure the ERP emits compliant payloads.

How Long Does a SAP to Tally Migration Take in the UAE?

A typical SAP-to-TallyPrime migration for a 3-entity manufacturing group (12 active ledgers, 4 cost-centre hierarchies, 3 years of GL history, open PO/GRN/AR) follows this timeline:

Phase	Calendar Weeks	Key Deliverable
Discovery & Data Profiling	1–2	Entity matrix, ledger count, custom Z-report inventory, VAT/CT gap log
CoA Mapping & Transformation Rules	2–3	Signed mapping workbook, tax-code cross-walk, rounding policy
Build & Unit Test (Dev Tenant)	3–5	Automated load scripts, reconciliation reports (TB, PL, AR/AP ageing)
Parallel Run & UAT	2–4	Daily TB tie-out, VAT 201 reconciliation, eInvoice payload validation
Cutover & Go-Live Support	1	Frozen legacy, final delta load, sign-off pack for internal audit

Total: 9–14 weeks. A single-entity trading company with clean master data can compress to 6–8 weeks; a 10-entity conglomerate with inventory batches, serial numbers, and project-costing history will push 16+ weeks.

Core Risks That Derail UAE Go-Lives

Risk	Symptom	TACHY Mitigation
Unmapped ledgers / orphan cost centres	Post-go-live TB variance > 0	Automated ledger completeness report; every legacy GL code must have a target mapping or explicit "do not migrate" sign-off
VAT tax-code mismatch	VAT 201 output tax ≠ Tally GSTR-1 equivalent	Tax-code cross-walk validated against last 4 VAT returns; rounding differences flagged at line level
Rounding differences in trial balance	Cumulative ±AED 0.05–0.10 per voucher	Configurable rounding scheme (banker’s vs. commercial) applied at migration script level, not manual journal
Lost eInvoice IRN / QR payload	PINT AE validation fails at Access Point	Custom Z-field preservation mapped to Tally UD fields; payload regression test in UAT
Inventory batch/serial mismatch	Stock value ≠ physical count	Dual-unit migration (base + alternate UOM), batch-expiry carry-forward, negative-stock resolution before cutover

Buyer’s Readiness Checklist (Use Before Signing an SOW)

[ ] Entity & Legal Structure — List every TRN, trade licence, and branch; confirm which are in scope for CT grouping.
[ ] Chart of Accounts — Export full CoA with level, group, and cost-centre tags; flag statistical / non-trading ledgers.
[ ] Open Transactions — AR/AP ageing, open POs, GRNs, stock transfer notes, WIP jobs as at cutover date.
[ ] Statutory History Depth — Define minimum years of GL detail required for FTA audit (typically 5) vs. summary carry-forward.
[ ] Customisations Inventory — Z-reports, user-exits, BAdIs, custom tables that drive pricing, commissions, or compliance.
[ ] Inventory Complexity — Batch, serial, multi-UOM, multi-warehouse, negative-stock policy, landed-cost tracking.
[ ] eInvoicing Fields — Document every field feeding the IRN/QR generation; confirm target ERP UD-field capacity.
[ ] Internal Audit Evidence Pack — Agree reconciliation reports (TB, VAT, stock, AR/AP) that auditors will accept as technology-enabled evidence.
[ ] Cutover Window — Identify a 48–72 hour low-activity period (month-end, festival shutdown) with key-user availability.
[ ] Rollback Plan — Signed agreement on revert criteria and legacy read-only access retention period.

What Drives the Fixed-Fee Quote

TACHY quotes project-based fixed fees after the paid discovery workshop. The primary cost drivers are:

Number of legal entities / TRNs in scope
Active ledger count and cost-centre hierarchy depth
Years of detailed GL history carried (vs. opening-balance only)
Statutory history depth for VAT/CT audit readiness
Custom Z-report / enhancement inventory requiring functional rewrite
Inventory complexity: batch, serial, multi-UOM, multi-warehouse, landed cost
Parallel-run duration and number of reconciliation cycles
Internal audit evidence-pack requirements (reconciliation reports, control matrices)

No per-day rates, no hidden licences, no per-student pricing (that belongs to our separate school/college ERP). The discovery output is a fixed-scope SOW with milestones tied to reconciliation sign-offs.

FAQ

### Can we migrate only opening balances and skip transaction history?

Yes, but UAE FTA audits may request drill-down to original invoices for up to five years. A summary-only migration shifts the burden to manual lookup in the legacy system; most CFOs choose at least 2–3 years of detailed GL + open sub-ledger items to keep audit response times low.

### Does TACHY handle the eInvoicing Access Point onboarding?

We prepare the ERP payload (PINT AE / UBL 2.1) and validate it against the MoF sandbox. Access Point selection, onboarding, and certificate management remain the client’s commercial decision; we integrate with your chosen provider’s APIs.

### What happens if the parallel run shows unreconciled differences?

The cutover gate does not open until the TB, VAT 201, and stock reconciliations are within the agreed tolerance (typically ±AED 0.00). Unresolved items are logged, root-caused, and either remediated in the migration script or documented as approved manual adjustments with auditor sign-off.

Ready to de-risk your UAE ERP migration? Book a UAE Readiness Assessment — a structured discovery that delivers the entity matrix, CoA gap log, timeline, and fixed-fee proposal.
👉 Start your assessment or WhatsApp +91 84348 01033 today.

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