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What Is a CRM System?

In short

A CRM system manages your sales pipeline, customer interactions, and business relationships in one place. Custom CRM systems eliminate eliminate expensive per-user licensing from Salesforce or HubSpot, while providing workflows designed for your exact sales process.

At a glance

Custom CRM Cost
Bespoke Quote
License Savings
Zero per-user monthly fees
ROI Period
18 to 24 months
Build Time
12 to 18 weeks

CRM Systems: A CRM (Customer Relationship Management) system is software that manages a company's interactions with current and potential customers. CRM systems track sales pipelines, customer communications, deal stages, and relationship history to improve sales effectiveness and customer retention.

How CRM Systems Works

CRM systems serve as the central hub for all customer-related information. They track every interaction — emails, calls, meetings, deals — associated with each contact and company. Sales teams use CRM to manage pipelines, forecast revenue, and track deal progress. Marketing teams use CRM data for segmentation and campaign targeting. Customer service teams use CRM to access customer history for better support. Modern CRMs integrate with email, calendars, accounting software, and communication tools to provide a complete view of customer relationships.

Business Context

Every business with a sales process needs a CRM. The choice is between off-the-shelf platforms (Salesforce, HubSpot, Pipedrive) and custom-built systems. Off-the-shelf CRMs charge per-user monthly fees that become expensive at scale. Custom CRMs have zero licensing costs and are designed around your exact sales methodology. Businesses spending significant amounts on recurring CRM licensing often achieve ROI from custom development within 18 to 24 months.

Technical Context

Custom CRM systems are built as web applications with relational databases (PostgreSQL) storing contacts, companies, deals, and interaction history. The frontend provides pipeline views, data grids, and reporting dashboards. Integration with email (Gmail, Outlook), accounting (Xero, QuickBooks), and communication tools (Slack) is achieved through API connections. Authentication and role-based access control ensure data security.

Real-World Examples

Sales Pipeline CRM

Custom pipeline stages, deal tracking, forecasting, and automated follow-up sequences designed around your specific sales methodology.

Recruitment CRM

Candidate tracking, interview scheduling, placement management, and client relationship tracking for recruitment agencies.

Property CRM

Property listings, buyer/tenant matching, viewing management, and transaction tracking for estate agencies.

Professional Services CRM

Client engagement tracking, proposal management, project linkage, and account-based relationship management.

Advantages and Limitations

Strengths

  • Zero per-user monthly licensing fees
  • Designed around your exact sales process
  • Direct integration with business systems
  • Full data ownership and portability
  • Faster performance than bloated platforms
  • Complete customisation control

Trade-offs

  • Higher initial development investment
  • Requires development team for new features
  • No third-party marketplace app integrations
  • Training required for proprietary interface

Common questions

What is the difference between CRM and ERP?
A CRM manages customer relationships and sales processes. An ERP manages internal business operations including finance, inventory, HR, and manufacturing. Many businesses need both. Custom systems can integrate CRM and ERP functionality into a unified platform.
Should we build a custom CRM or use Salesforce?
Build custom when: you spend significant amounts on CRM licensing, your sales process is unique, you need deep integration with other systems, or Salesforce forces you to work around its limitations. Use Salesforce when: you need rapid deployment, have standard sales processes, and budget allows ongoing licensing.
How long does it take to build a custom CRM?
A custom CRM typically takes 12 to 18 weeks from requirements analysis to launch. Essential CRM with core features takes 8 to 12 weeks. Enterprise CRM with advanced features takes 16 to 24 weeks.

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