Key takeaways
- CRM is front office: leads, opportunities, customers, service and marketing.
- ERP is back office: orders, inventory, purchasing, production and finance.
- Most growing companies need both, connected so each record has one owner system.
- The integration design, deciding which system owns which data, matters more than the brands you choose.
“Do we need a CRM or an ERP?” is one of the most common questions we hear. The honest answer is that they solve different problems, and most companies past a certain size use both. The trick is making them work as one.
What a CRM does
A customer relationship management system, such as Salesforce or HubSpot, tracks everything about winning and keeping customers: leads, contacts, opportunities, quotes, activities, marketing campaigns and service cases. It answers questions like “What is in our pipeline?” and “When did we last speak to this customer?”
What an ERP does
An enterprise resource planning system runs operations and finance: sales orders, inventory, purchasing, manufacturing, fulfilment, invoicing and the general ledger. It answers questions like “Do we have stock?”, “What did this order cost us?” and “What do customers owe?”
Side by side
| CRM | ERP | |
|---|---|---|
| Main users | Sales, marketing, service | Operations, warehouse, purchasing, finance |
| Core records | Leads, contacts, opportunities, cases | Products, orders, stock, invoices, ledger |
| Key question | Who are our customers and how do we win more? | How do we deliver, and what does it cost? |
| Typical metrics | Pipeline, win rate, customer satisfaction | Margin, inventory turns, cash flow |
Where they overlap
Customers, products, prices, quotes and orders appear in both worlds. Without integration, staff re-type orders, sales reps cannot see invoice or delivery status, and finance chases information by email.
How to connect them well
- Pick one owner per data element. Often the ERP owns products, prices, stock and invoices, while the CRM owns leads, opportunities and contacts.
- Define the handover point. A common pattern is that a closed-won opportunity or an accepted quote creates the sales order in the ERP.
- Sync back what sales needs. Order status, shipment tracking, open invoices and credit holds shown on the CRM account.
- Use shared IDs. Store the ERP customer number on the CRM account and vice versa.
- Monitor the sync. Failed records should alert someone, not disappear silently.
Can one system do both?
Some platforms try to, and for small, simple businesses an all-in-one can work. As complexity grows, specialist CRM and ERP systems connected by a clean integration usually serve each team better. Our system integration team connects CRM and ERP systems every day, and the same principles apply whichever products you choose.
A worked example: quote to cash
Consider a distributor using Salesforce as its CRM and a separate ERP for operations. A sales rep builds a quote in Salesforce using products and prices synced from the ERP, so pricing is always current. When the customer accepts, the opportunity is marked closed-won and an integration creates the sales order in the ERP, using the ERP customer number stored on the Salesforce account.
The ERP reserves stock, the warehouse ships, and the ERP invoices the customer. Order status, tracking numbers and invoice balances flow back to Salesforce, so the rep can answer “Where is my order?” and see overdue invoices before the next sales call. Nobody re-types anything, and each piece of data has exactly one owner.
Signs your CRM and ERP are not working together
- Sales staff email operations to check stock or order status.
- Orders are re-keyed from the CRM into the ERP, with occasional errors.
- Customer addresses or contacts differ between the two systems.
- Sales leaders cannot see revenue, margin or payment status alongside pipeline.
- Finance learns about large deals only when the order arrives.
Choosing the integration approach
| Approach | Good for |
|---|---|
| Pre-built connector | Common CRM and ERP pairs with standard processes |
| Middleware or iPaaS | Several systems, transformations and central monitoring |
| Custom API integration | Specific processes, custom objects or performance needs |
Whichever approach you choose, design the data ownership and matching rules on paper first. A short mapping document saves weeks of fixing duplicate customers later.
Frequently asked questions
Should we implement CRM or ERP first?
Start where the pain is greatest. If you are losing deals and visibility, CRM first. If orders, stock and invoicing are chaotic, ERP first. Plan the integration from day one either way.
Can Salesforce act as an ERP?
Salesforce is a CRM platform. Some ERP products are built on it, but most businesses run a dedicated ERP and integrate it with Salesforce.
What usually goes wrong when connecting CRM and ERP?
Unclear data ownership and duplicate customers. Deciding the system of record and matching keys before building the integration prevents most issues.
