Case Study: How a Pune Retailer Saved 40% on Billing Time

Overview

This is a representative case study based on composite results from telecom retailers who have implemented RetailerOS. While the specific business described is illustrative, the metrics and outcomes reflect typical results observed across similar retail operations.

The Retailer: A Growing Multi-Store Operation in Pune

The Before State: Tally, Excel, and WhatsApp

Billing and Invoicing Billing was done through Tally ERP 9 with a custom configuration for GST-compliant invoicing. Tally handled the financial side well enough, but it was never designed for telecom-specific workflows. IMEI numbers were entered manually as a line item description — there was no structured IMEI field, no barcode scanning integration, and no way to search or report on IMEI data after the fact. Average time to complete a single smartphone sale (from product selection to printed invoice): 8-10 minutes. During peak hours on weekends and festive days, customers waited 15-20 minutes for billing. ### IMEI Tracking IMEI records were maintained in a separate Excel sheet — one file per store, updated daily (in theory). In practice, the Excel was updated in batches every 2-3 days. This created a rolling window of discrepancy where the billing system and the IMEI register were out of sync. During a routine stock audit, the retailer found 23 IMEI discrepancies across 3 stores — devices that were billed but not recorded, recorded but not billed, or recorded against the wrong model. Resolving each discrepancy took 30-45 minutes of cross-referencing invoices, distributor records, and physical stock. ### Scheme Management Brand schemes were tracked using a combination of WhatsApp group messages (where brand managers posted updates), a shared Google Sheet (where the owner tried to consolidate active schemes), and memory (where salespersons recalled which schemes to apply). The owner estimated that the business was missing Rs. 30,000-40,000 per month in unclaimed scheme payouts. The biggest losses came from: - Volume slab schemes where the business fell just short of the next tier because no one was tracking the running count across stores - Per-unit cashback schemes where claims were submitted late or with incomplete documentation - Exchange schemes where the trade-in incentive wasn't properly logged ### Daily Reconciliation The owner spent 45 minutes to 1 hour every evening reconciling the day's sales across Tally, the Excel IMEI register, and the cash/UPI collection records. On weekends, this stretched to 90 minutes. Monthly closing — reconciling scheme claims, distributor payments, and GST filings — took 4-5 full working days. ### GST Compliance GST returns were prepared by an external chartered accountant who received data exports from Tally. But because Tally invoices didn't always capture HSN codes correctly for accessories and combo sales, the CA regularly flagged errors that required manual correction. GST audit time was a source of constant stress — the owner described it as "always feeling one notice away from a problem."

The Decision to Switch

Implementation: A 2-Week Rollout

The After State: 90 Days Post-Implementation

Billing Time: 40% Reduction The most immediately noticeable change. Average billing time per smartphone sale dropped from 8-10 minutes to 4.5-6 minutes. The improvement came from three factors: 1. Integrated IMEI scanning. Instead of manually typing a 15-digit IMEI number into a Tally description field, staff scan the barcode on the device box. The IMEI is captured, validated, and linked to the invoice automatically. 2. Auto-applied schemes. Instead of the salesperson manually calculating which scheme applies and adjusting the price, RetailerOS identifies and applies all eligible schemes automatically. The salesperson confirms the final price — they don't compute it. 3. Customer record lookup. Returning customers are identified by phone number. Their purchase history, previous devices, and applicable exchange values are available instantly — no searching through old invoices. During peak hours, the reduced billing time translated to 2-3 additional customers served per store per day. At an average transaction value of Rs. 15,000, that's Rs. 45,000-90,000 in additional daily revenue capacity across 3 stores. ### Scheme Recovery: Rs. 65,000 in the First Month In the first full month on RetailerOS, the business recovered Rs. 65,000 in scheme payouts that would have been missed under the old system. The breakdown: - Rs. 28,000 from hitting a Vivo volume slab. The real-time slab tracker showed the team was 5 units short with 4 days remaining — they focused selling effort and hit the target. - Rs. 22,000 from per-unit cashback claims that were auto-generated and submitted on time with complete documentation. - Rs. 15,000 from exchange scheme incentives that were now properly captured and claimed. Over 90 days, total additional scheme recovery: approximately Rs. 1.8 lakh. This alone represented a 15x return on the implementation cost. ### IMEI Discrepancies: Zero After the first month on RetailerOS, the next stock audit found zero IMEI discrepancies. Every device in stock had a matching system record. Every sold device had an IMEI linked to an invoice. Every inter-store transfer was logged with IMEI-level detail. The 2 back-office hours previously spent weekly on IMEI reconciliation were eliminated entirely. ### Daily Reconciliation: From 45 Minutes to 10 Minutes End-of-day reconciliation went from a 45-minute manual exercise to a 10-minute dashboard review. Because billing, IMEI tracking, scheme application, and payment collection all happen in the same system, there's nothing to cross-reference. The day's numbers either match or they don't — and if they don't, the discrepancy is flagged automatically with the specific transaction that caused it. Monthly closing — which previously consumed 4-5 working days — now takes less than a full day. ### GST Compliance: Audit-Ready at All Times GST returns are now generated directly from RetailerOS with correct HSN codes, proper tax calculations, and complete invoice trails. The chartered accountant's review time dropped from 2 days to 3 hours. The owner's description: "For the first time, I'm not anxious about a GST notice."

Summary of Results

Key Takeaways for Telecom Retailers

Is Your Retail Operation Facing Similar Challenges?