From Tally & Google Sheets to ERPNext: Precihole’s Manufacturing Transformation
Industry: Manufacturing Company size: Multi-entity (4 subsidiaries) Location: Mumbai, India Solution: ERPNext via MAAS Consult Modules deployed: Manufacturing, Accounts, Stock, Buying, Subcontracting, Warehouse Management
At a Glance
| Challenge | Outcome |
|---|---|
| Accounting isolated in Tally, operations on spreadsheets | Single unified ERP covering all departments |
| Error-prone custom Google Scripts mini-ERP | Barcode-based stock entries, up to 40% fewer data entry errors |
| No native HR, Quality, or Manufacturing module | Full manufacturing and HR workflows live in ERPNext |
| External dependency for every customization | Internal team Frappe-certified and self-sufficient |
| Parallel systems causing reconciliation delays | Full company cutover completed in FY 2022-23 |
About Precihole Machines
Precihole Machines is a Mumbai-based manufacturer with more than three decades of expertise in deep hole drilling solutions and air rifle manufacturing. Founded in 1990 and operating across four subsidiaries, the company serves precision engineering markets where operational accuracy is non-negotiable.
As Precihole scaled, its technology stack could not keep pace. Accounting lived in TallyPrime. Operations lived in spreadsheets. And somewhere in between, a homegrown Google Scripts application was holding together what a proper ERP system should have been doing all along.
That arrangement worked until it did not.
The Problem: Three Systems Doing the Job of One
Tally Handled Accounts. Everything Else Was Improvised.
For years, Precihole used TallyPrime strictly for accounting. Inventory records, production schedules, subcontracting workflows, and purchasing data all lived in separate spreadsheets or physical documents. Teams had no shared view of the business. If the accounts team needed stock data, they asked the warehouse team. If the warehouse team needed purchase history, they opened another file.
This is the classic data silo problem that manufacturers outgrow at around the 50-employee mark. At Precihole, with four subsidiaries to consolidate, the cost of those silos was compounding.
The Custom Google Scripts Mini-ERP
To close the gap between Tally and operations, Precihole’s co-founder built a custom inventory and operations tool using Google Scripts. In hindsight, this was a creative and resourceful solution. In practice, it became a liability.
Because only one person fully understood the system, any issue or enhancement required that person’s direct involvement. The co-founder became a bottleneck for their own business. When the system threw errors — which it did with increasing frequency as the business grew — production would stall while waiting for a fix.
A business of Precihole’s size cannot run on a system one person can maintain.
Tally’s Customization Ceiling
TallyPrime is a strong accounting tool. It is not designed to run manufacturing operations. Precihole found that extending Tally to cover procurement workflows, quality checks, or warehouse management required external partners, expensive customizations, and an increasingly fragmented user interface.
Key business functions — HR, manufacturing order management, quality control — had no native home. Teams built workarounds. Workarounds became processes. Processes became impossible to audit.
Why ERPNext
When Precihole began evaluating alternatives, ERPNext met the criteria that Tally and the Google Scripts tool could not:
Open-source architecture. No per-seat licensing fees and no vendor lock-in. Precihole could own their system, not rent access to it.
Native manufacturing coverage. Bills of Materials, Work Orders, Subcontracting, and Warehouse Management are built into ERPNext’s core — not bolted on through third-party modules.
Customizability without complexity. ERPNext’s framework allows businesses to extend functionality without rewriting the core system. Precihole’s team could adapt the platform to their workflows rather than adapting their workflows to the platform.
Frappe partner network. Access to an authorized implementation partner meant structured onboarding, knowledge transfer, and accountability — the opposite of a one-person Google Scripts dependency.
For manufacturers evaluating a Tally to ERPNext migration, this combination of factors is typically decisive. The question is not whether ERPNext has the features. The question is whether the implementation is managed correctly.
The Migration Process
Parallel Testing Before Full Cutover
Precihole did not flip a switch. They ran ERPNext and TallyPrime in parallel, with the accounts and finance teams validating every transaction against both systems. This is the correct approach for any migration where financial data integrity is a hard requirement.
After rigorous parallel testing, the accounts team confirmed that ERPNext matched and, in several compliance scenarios, exceeded TallyPrime’s output. That validation gave the leadership team the confidence to commit to a full cutover.
Phased Deployment Across Modules
Modules were brought live in a logical sequence: Accounts and Stock first, then Manufacturing and Subcontracting, then Warehouse Management and Buying. This phased approach reduced the change management load on individual teams and allowed each department to stabilize before the next module went live.
Barcode-Based Stock Transfers
One of the most impactful changes Precihole implemented was barcode-based stock transfer entries. Manual stock entry — typing part numbers, quantities, and bin locations by hand — is where manufacturing ERPs accumulate errors. A single transposition in a stock transfer creates a discrepancy that ripples through procurement, production planning, and financial reporting.
Barcode scanning eliminated that source of error. Stock transfer accuracy improved significantly, contributing to the 40% reduction in stock-related data entry errors that Precihole tracked post-implementation.
Biometric Attendance Integration
ERPNext’s HR module was integrated with Precihole’s biometric attendance hardware. Attendance data now flows directly into payroll calculations without manual re-entry — another category of manual work that had previously consumed HR team time and introduced error.
Results
Full Cutover in FY 2022-23
The entire organization — all four subsidiaries — completed the transition to ERPNext as their primary operating system in FY 2022-23. TallyPrime and the Google Scripts tool were decommissioned.
Real-Time Inventory Visibility
With Stock and Warehouse Management live, Precihole’s operations teams can check inventory levels, stock locations, and transfer histories in real time from a single screen. The era of calling the warehouse to ask how many units were in stock ended with the migration.
Self-Sufficient Internal Teams
This is the metric that matters most for long-term ROI. Precihole’s internal teams completed Frappe certifications post-implementation. The company can now develop, customize, and maintain ERPNext without external dependency — the precise opposite of their situation with the Google Scripts tool.
No single person is a bottleneck. No vendor is required for routine changes. The business owns its own system.
Compliant Accounting Across All Entities
After parallel testing, Precihole’s accounts team confirmed that ERPNext delivers fully compliant accounting across all four subsidiaries. Multi-entity financial consolidation, which previously required manual reconciliation across Tally and spreadsheets, now happens within a single system.
Streamlined Subcontracting and Manufacturing Operations
Subcontracting workflows, manufacturing orders, and warehouse operations are managed within ERPNext’s native modules. The patchwork of spreadsheets, external partners, and manual handoffs that previously connected these functions has been replaced by automated workflows with full audit trails.
What This Means for Manufacturers Considering the Same Move
Precihole’s story is not unusual. It is, in fact, the standard trajectory for manufacturers that began with Tally:
- Tally covers accounting well in the early years
- Operations outgrow Tally’s scope
- Spreadsheets and custom tools fill the gap
- Those tools become fragile dependencies
- The cost of staying on Tally exceeds the cost of migrating
The question for most manufacturers is not whether to migrate but when, and with which implementation partner.
MAAS Consult has delivered more than 2,000 ERP implementations across the GCC and South Asia, including Tally-to-ERPNext migrations for manufacturing businesses. If your business is running a version of what Precihole experienced — accounting in Tally, operations in spreadsheets, and a growing list of workarounds — the time to act is before those workarounds become your process.
Talk to a migration specialist today and get a structured assessment of what a Tally-to-ERPNext move would look like for your business.
FAQ: Tally to ERPNext Migration
Can ERPNext import historical data from TallyPrime? Yes. Historical accounting data, opening balances, and item masters can be migrated from TallyPrime to ERPNext using structured import templates. The depth of historical migration depends on how clean and structured the source data is. MAAS Consult’s migration process includes a data audit before import begins.
Will we lose any accounting features we rely on in Tally? No. ERPNext covers all standard accounting functions including journal entries, accounts payable and receivable, bank reconciliation, tax compliance, and financial reporting. After parallel testing, Precihole’s finance team confirmed that ERPNext matched TallyPrime on all standard accounting tasks and exceeded it on compliance flexibility.
How long does a Tally to ERPNext migration take for a manufacturer? Timeline depends on the number of entities, data volume, and module scope. For a mid-size manufacturer with two to four subsidiaries, a phased migration typically runs between three and six months from kickoff to full cutover. Precihole completed their migration within a single financial year.
What happens to our Tally data after migration? Your Tally data is preserved and can be archived or maintained in read-only mode for reference. Regulatory requirements in most jurisdictions require retaining accounting records for a minimum number of years, so your legacy Tally data remains accessible even after the system is decommissioned.
Is ERPNext suitable for multi-entity manufacturing companies? Yes. ERPNext supports multi-company structures natively, including inter-company transactions, consolidated financial reporting, and entity-level access controls. Precihole’s four-subsidiary structure was managed within a single ERPNext deployment.
Does MAAS Consult also support TallyPrime if we are not ready to migrate? Yes. MAAS Consult is an authorized TallyPrime partner and can support businesses that need to optimize their Tally setup before or instead of migrating. If your team needs time to evaluate ERPNext, a Tally assessment is a practical first step.
