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By Abhilash Babbili · Last updated 19 May 2026

Service · Custom CRM Development

Custom CRM development for businesses tired of losing leads.

Your sales team should not be copy-pasting WhatsApp messages at 10pm. A simple CRM, set up right, takes that load off them. The lead comes in from your Meta ad. It gets assigned to the next agent in line within eight seconds. The agent's phone rings before the buyer has even closed the form. That is what a CRM should do. Most do not, because nobody bothered to build them around how the business actually works.

< 8s
Lead-to-agent assignment
0
Lead leakage target
Web + Mobile
Every CRM ships with both
Your IP
Code on your GitHub
[ 01 / What is included ]

What a Koiner-grade CRM ships with.

Not features for the brochure. Behaviour the sales team feels on day one. Faster assignment, fewer duplicates, no lead sitting in someone's WhatsApp inbox unread overnight.

1

Round-robin auto-assign

New lead enters the system, the next agent in queue gets it. Skip-on-leave, escalation on no-pickup, queue weights by performance. No more "I thought Rohit was calling that one".

2

Duplicate suppression

Phone, email and project-name dedupe. If the same buyer fills three forms across two campaigns, it shows up as one lead with three sources, not three leads competing for assignment.

3

Masked contacts

Agents see the lead, can call from the app, but never see the raw phone number. Standard for real estate channel partners and compliance-sensitive industries.

4

IVR + WhatsApp capture

Inbound call rings the CRM first, agent picks up from the app, lead lands in the queue automatically. WhatsApp messages do the same.

5

Audit logs on everything

Who saw the lead, who called, who closed, who reassigned, when. Searchable, exportable, hard to game.

6

Channel partner dashboard

Partner logs in, sees only their leads, only their commission. You see the full picture. Standard for real estate, optional everywhere else.

[ 02 / Process ]

How a CRM build actually runs.

01 · SHADOW

Watch the team for a day.

Before drawing a single schema, I sit with the sales team for a half-day. How leads come in, where they get stuck, what the WhatsApp group looks like at 9pm. The CRM is built around what I see, not what the team says in meetings.

02 · SCHEMA

Data model on one page.

Lead, account, agent, queue, project, activity, assignment. Drawn on one page, approved by you before any code gets written.

03 · SHIP

Web first, mobile next.

Web CRM in week 2 to 3. Mobile app for the sales team in week 4 to 5. IVR and WhatsApp wiring in week 5 to 6. Production from day one, not a staging-then-launch model.

04 · HANDOVER

Train the team, leave the code.

Two training sessions for the sales team, one for the admin. Documentation in a shared Notion. Code on your GitHub. If we part ways tomorrow, any developer can pick it up.

[ 03 / Comparison ]

Custom CRM vs. Zoho vs. building one yourself.

What mattersCustom (me)Zoho / SalesforceBuild in-house
Round-robin assignment in secondsYesWith config + workflowMonths to build
Masked contacts (channel partners)YesHack-onlyMonths to build
IVR-to-CRM in under 60 secondsNativeExtra plugin + costHard problem
Custom workflow your team will useYesForced to their modelMaybe
Per-user license costZero₹1.5K-5K/user/moZero
Upfront cost₹75K-6LLow₹15-30L (dev team)
[ 04 / Proof ]

The CRM, in production.

Koiner CRM v1.0 is the headline build. Real estate is the hardest CRM environment in India: channel partners, IVR-heavy, multi-project, RERA, sales teams that work weekends. If the CRM holds up there, it holds up anywhere.

[ 05 / Engagement ]

Three ways to start.

CRM audit

~2 weeks

I shadow your sales team for half a day, open your existing CRM (or Excel), then send back a written report on what's broken and what the right system should do. Build it yourself or bring me back.

Focused CRM sprint

4-6 weeks

Web CRM with the core flow: auto-assign, dedupe, activity log, dashboards. Built around your sales process, not a template. Mobile app optional.

Full stack (Koiner shape)

8-12 weeks

Web CRM, mobile app, IVR capture, WhatsApp wiring, channel partner dashboard. The whole thing. What real estate, hospital and high-volume sales teams actually need.

[ 06 / FAQ ]

Questions sales leaders ask.

Round-robin auto-assign, duplicate suppression, masked contacts, IVR and WhatsApp capture, audit logs on every action, optional channel partner dashboard, and a React Native mobile app for the sales team. Final scope depends on what your sales process needs. Send me your current setup and I'll send back a written scope.
If your business fits a SaaS template, use the SaaS. Custom CRM makes sense when you need behaviour the templates do not support: real estate channel partners, masked contacts for compliance, IVR-to-CRM routing in under 60 seconds, or a Hindi-Telugu sales team that needs a different UI than what SaaS gives you.
Node.js and MongoDB on the backend, vanilla HTML/CSS/JS or React on the frontend, React Native with Expo for the mobile app, WhatsApp Business API and Twilio for messaging and IVR. Self-hostable on Hostinger, Render or AWS.
Yes. Code lives in your GitHub, hosting is on your accounts, database is yours. If we part ways tomorrow, any other developer can pick the system up and keep it running.
Yes. Most migrations come from Excel, Google Sheets, Zoho or a half-finished agency build. I write a one-off import script, validate against your existing data, then cut over on a weekend.
Every CRM I build can include a React Native mobile app. The sales team can call leads from the app, log activity, see their queue, attach voice notes. iOS and Android from one codebase.

Send me your sales workflow.

A screenshot of your existing CRM or the WhatsApp group, a short note on what the sales team complains about most, and what good looks like in 90 days. Within 48 hours I'll send back a one-page brief on what to build first.