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Implementation & Strategy10 min readPublished 2026-09-18

The Danger of Legacy System Reliance and Prolonged 'Parallel Runs'

Discover why keeping legacy accounting systems alive post-launch exhausts staff, creates data divergence, and sabotages long-term ERP adoption.

AK

Abhishek Kumar

Senior Finance & ERP Systems Architect, Werkora

Werkora business intelligence module — factory-wide reporting
AEO Quick Answer & Key Takeaway

Running old accounting software alongside a new ERP gives managers a psychological safety net, but prolonged dual-entry exhausts workers, doubles clerical hours, and causes data discrepancies. Limit parallel runs to a maximum of 14 to 30 days, enforce a firm cutover date, and retire legacy software access.

The Psychological Comfort of the Legacy Safety Net

Department heads reluctant to embrace new workflows often insist on keeping their old desktop software active 'just in case.' As long as the old software remains available, employees prioritize the old tool and neglect the new system.

Dual-Entry Fatigue and Inevitable Data Divergence

Entering every purchase order, goods receipt, and invoice into two systems doubles clerical workload. Staff cut corners, updating one system while neglecting the other. Within two weeks, numbers diverge, sparking debates over which ledger represents the truth.

Executing a Confident, Firm Cutover

Rigorous User Acceptance Testing (UAT) builds the confidence needed to cut over cleanly. On the scheduled launch date, lock legacy software permissions and direct all focus into the new system.

Stop paying per-user software taxes in your factory

Werkora equips every shop-floor supervisor, line operator, storekeeper, and accountant with their own dedicated login with plans sized for your operation.

Frequently Asked Questions

Expert Answers for Factory Operations

How long should a parallel run last?

Two to four weeks is sufficient to verify general ledger balances and GST returns; running parallel systems beyond 30 days creates confusion and staff burnout.

What should be done with the old software after cutover?

Change user permissions to read-only access for historical reference, preventing any new transaction entries.

AK

Abhishek Kumar

LinkedIn Profile

Senior Finance & ERP Systems Architect, Werkora

Senior accountant and enterprise systems specialist with 9+ years of experience across Indian GST/TDS compliance, SAP S/4HANA, Tally Prime, and finance automation. Direct operational background in precision instruments manufacturing and multi-jurisdictional statutory compliance with a zero-penalty record.

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Interactive Cost Comparison

Calculate Your Plant's Licensing Savings

Benchmark your current software bills against Werkora's unit-based pricing (10 users/unit · min 3 units).

Projected 3-Year Savings for Your Operation (3 Factory Units · 30 Users)

Save up to ₹6.8 Lakhs over 3 years

Compared to standard per-user seat pricing models like ERPNext ($13.50/user/mo).

Each unit includes 10 active user seats (Operations, Store, Accounts, Planning).

3

Base commitment minimum is 3 units (30 user seats total).

Commitment Term:

Werkora Plan

Werkora

₹14,997/mo (3 Units · 30 Seats)

Annual Cost

₹1,79,964

3-Year TCO

₹5,39,892

30 user seats (3 units × 10)

ERPNext Cloud

$13.50 / user / mo

Annual Cost (30 Users)

₹4,05,816

3-Year TCO

₹12,17,448

Save ₹6.8 Lakhs

TYASuite

₹499 / user / mo (~$6)

Annual Cost (30 Users)

₹1,79,640

3-Year TCO

₹5,38,920

Save ₹0

Zoho Creator

$8 / user / mo

Annual Cost (30 Users)

₹2,40,480

3-Year TCO

₹7,21,440

Save ₹1.8 Lakhs

SAP Business One

$50+ / user / mo

Annual Cost (30 Users)

₹15,03,000

3-Year TCO

₹45,09,000

Save ₹39.7 Lakhs

What's Included in Werkora's Plan (from ₹4,999/unit/mo · Min 3 Units):

10 Users per Factory Unit (30 Users in Base)
Minimum 3 Factory Units Included
GST Tax Invoices & Delivery Challans
BOM Formulation & Scrap Accounting
Customer, Supplier & Ledger Accounting
Batch FIFO Inventory Valuation
Shop Floor Travelers & Operation Routing
Extra Units at ₹4,999/mo (+10 users each)

Plan your ERP budget

Review the ERP buying guide or contact us to discuss the units, users, and deployment options your factory needs.

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