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AI automation services for business India combine ERP migration, data reconciliation, and intelligent workflow automation to eliminate manual effort in finance and operations. A typical SAP-to-Tally or cloud migration runs 8–16 weeks depending on entity count, ledger complexity, and statutory history depth. Projects are fixed-fee after a paid discovery phase; there is no per-day or per-entity rate card.
When Indian manufacturers, traders, or distributors evaluate ai automation services for business india, they are usually solving three connected problems: legacy data trapped in SAP or scattered Excel files, month-end close cycles that take weeks, and statutory compliance (GST, TDS, TCS) that relies on manual vouchers. The service scope spans:
TACHY delivers this as a single engagement: TACHY enterprise services cover discovery, build, parallel run, cutover, and 30-day post-go-live support.
A standard SAP-to-Tally migration for a mid-market manufacturing group (2–4 legal entities, 5–7 years of history, ~3,000 active ledgers) follows this timeline:
| Phase | Duration | Key Activities |
|---|---|---|
| Discovery & Sign-off | 2 weeks | Environment access, data profiling, COA mapping workshop, risk register |
| Build & Unit Test | 3–5 weeks | Extraction scripts, transformation rules (ledger groups, tax codes, cost centres), UAT scripts |
| Parallel Run | 4–6 weeks | Daily/weekly TB reconciliation, GST register matching, inventory valuation checks, user acceptance |
| Cutover & Go-live | 1 week | Final delta load, opening balance lock, statutory register freeze, sign-off |
| Hypercare | 4 weeks | Issue triage, auditor queries, month-end close support |
Complexity drivers that extend the timeline:
- Custom Z-reports or user-exits in SAP that have no Tally equivalent
- Multi-currency or inter-company elimination layers
- Inventory with batch/serial tracking, alternate units, or job-work cycles
- Pending litigation requiring frozen historical vouchers
Cost is not a function of headcount days. It is driven by structural complexity that determines the size of the transformation rule-set and the volume of reconciliation exceptions. The primary drivers are:
After discovery, TACHY quotes a fixed project fee covering the full lifecycle. There are no hourly rates, no per-entity surcharges, and no change-request billing for scope agreed in the signed SRS. The discovery phase itself is a separate, time-boxed engagement with a defined deliverable (mapping document, risk register, effort estimate).
Missing items on this list are the single biggest cause of timeline slippage.
| Risk | Symptom | Mitigation in TACHY Engagement |
|---|---|---|
| Unmapped ledgers | Post-migration TB shows "Suspense" or "Difference in Opening Balances" | Pre-migration COA mapping workshop; every SAP GL account mapped to Tally group + cost centre before build |
| Tax-code mismatches | GST register (GSTR-1) does not match posted vouchers | Tax-code translation table built in discovery; automated GST register reconciliation script run daily in parallel run |
| Rounding differences in TB | ₹1–₹5 variances per ledger per month | Rounding rules defined per ledger group (nearest rupee, paise truncation); variance threshold auto-approved up to ₹10 |
| Missing statutory history | Auditor asks for FY 2021-22 HSN summary; data not in Tally | Statutory history depth agreed in SRS; if full history not carried, static PDF/Excel archives with hash verification delivered |
| User resistance | Finance team continues posting in old SAP after go-live | Cutover checklist includes SAP posting block, Tally-only authorization, and 2-week dual-run with daily sign-off |
The parallel-run period is non-negotiable. It is where the finance team validates that every voucher type (sales, purchase, payment, receipt, journal, stock journal, debit/credit note) posts correctly, that GST returns generated from Tally match the portal, and that inventory valuation reports tie to physical stock.
Migration gets the data right. AI automation keeps it right. Post-go-live, TACHY deploys:
These are not generic SaaS tools. They are configured on the migrated COA, party masters, and tax codes so that the same "language" flows end-to-end.
Yes. Discovery produces the mapping document, risk register, and effort estimate that form the basis of the SRS. Without it, any fixed fee would be a guess — and guesses become disputes. The discovery fee is credited against the project if you proceed within 30 days.
Yes, and many clients choose this to reduce timeline and cost. However, statutory history (GST registers, TDS certificates) for prior years must still be accessible. TACHY delivers static, hash-verified archives for audit purposes while the live Tally company carries only opening balances.
The parallel-run reconciliation script flags them daily. New mappings are added to the transformation rule-set, the delta is re-loaded, and the TB is re-validated. This is included in the fixed fee — provided the ledger existed in the source SAP extract shared during discovery. New ledgers created after discovery freeze are a change request.
Ready to scope your migration or automation project? Start with a discovery call: TACHY lead form or WhatsApp +91 84348 01033.
Published 2026-10-20 · © 2026 TACHY SCHOOL ERP · School ERP in India