ERP vs CRM: what is the difference, and which one do you need?

"Do we need an ERP or a CRM?" is one of the most common questions business owners ask. Both acronyms get used a lot, but they solve different problems. This article explains the difference in plain language and gives you the questions that help work out what you actually need.

What is a CRM?

A CRM (Customer Relationship Management) system organises your sales team's daily work:

• it collects inquiries from your website, Telegram and phone calls in one place;

• it moves each inquiry through stages: new, contacted, proposal sent, deal closed;

• it gives managers tasks and reminders, so nobody forgets to "call back later";

• it keeps each client's full history: who talked to them, when and about what;

• it shows which channel brings in the most clients.

In short, a CRM looks outward, at customers and sales.

What is an ERP?

An ERP (Enterprise Resource Planning) system brings the inner life of the company into one database:

• finance: revenue, costs, profit and loss;

• inventory and purchasing: stock levels, movements, supplier settlements;

• staff: attendance, payroll, tasks;

• production or service delivery processes;

• reports for management.

An ERP looks inward, at money, resources and processes.

The main difference in one sentence

A CRM answers "who will buy from us, when and why?". An ERP answers "what do we have, what did we spend and what did we earn?".

Signs you need a CRM

• Inquiries are scattered across Telegram chats, notebooks and managers' phones.

• You don't know which ad or channel brings in clients.

• Managers forget to call back, and clients go to competitors.

• When a manager leaves, their clients leave with them.

Signs you need an ERP

• Your data sits in several spreadsheets and apps that don't agree with each other.

• The monthly report takes several days to prepare.

• The stock on the shelves doesn't match the stock in the books.

• At the end of the month it's hard to say what the real profit was.

• The same data is typed in several times, in several places.

What if you need both?

That's common. The key is not to build everything at once. Start with the process that hurts most. With a modular approach, the CRM and the ERP can be parts of one system: a won deal automatically becomes an order, an invoice and a stock movement. Data is entered once and is the same everywhere.

Off-the-shelf or custom-built?

Off-the-shelf systems start quickly and work well for standard processes. But you adapt your processes to the software, you pay monthly for every user, and integrations with local services aren't always available.

A custom system is built around your processes, contains only the modules you need, and can connect to local payment providers, your accounting software or Telegram. It takes time and an upfront budget.

When choosing, look at:

• how specific your processes are;

• how many users you have and how fast that number grows;

• which systems you need to integrate with;

• how much it matters to you who owns the data and the code.

Five questions before choosing a CRM

1. Which channels do inquiries come from: website, Telegram, Instagram, phone?

2. How many stages does your sale have, and what happens at each one?

3. Who will use the system, and who should see what?

4. Which reports do you want to see every week?

5. Which systems should the CRM connect to: accounting, telephony, payment providers?

With these answers ready, a conversation with any developer becomes far more productive.

The bottom line

Start with the problem, not the acronym. If you need order in sales and client work, that's a CRM. If you need finance, stock and staff in one place, that's an ERP. Often the answer is the parts of both that you need.

You can see an indicative price and timeline in a few minutes with our estimator, or tell us about your task and we'll work it out together.