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Official Sellsy Reseller - CRM, Sales, Billing & Marketing
Deploy and configure Sellsy with our experts
if/else agency is now an official Sellsy reseller. The certified French platform for electronic invoicing, built to cover your entire sales cycle, from lead generation to payment collection.
Turn the platform into a true growth and management driver by combining CRM structuring, e-invoicing compliance, cash flow management, and targeted marketing initiatives.
Sellsy - One platform, four key drivers
A fully integrated solution covering your entire sales cycle
Sellsy brings together in a single platform what's usually spread across multiple tools:
Marketing
Generate leads, engage your prospects and customers
- Forms and landing pages
- Email and SMS campaigns
- Marketing automation & lead scoring
Sales
Grow your Revenue by Selling More and Better
- Contact and Pipeline management
- Quotes and electronic signatures
- Deal tracking
Billing
Save time on your invoices and payments
- Deposit and subscription management
- Quote-to-invoice conversion
- Purchasing and pre-accounting management
- Automatic reminders and online payments
Cash Flow
Easily manage your cash flow
- Bank synchronization
- Cash flow tracking and forecasting
- Automatic categorization
Why Choose Sellsy for Your Business
Sellsy: The 5 Key Benefits
Sellsy is a French platform that brings together CRM, sales, invoicing, cash flow, and marketing in a single tool. Built to align your teams around one shared goal: accelerating the sales cycle, from lead generation to payment.
A French, compliant solution
Data is hosted in France with Scaleway. Sellsy is GDPR-compliant and has been a member of the National Forum for Electronic Invoicing since 2022, as well as the Federation of Digital Trusted Third Parties (FNTC).
A certified e-invoicing platform, included
Sellsy is a certified Platform Agréée (PA) for both receiving and issuing electronic invoices, included in your subscription regardless of your plan. It's a real asset for getting ahead of the upcoming reform: the obligation to receive e-invoices starts in September 2026, and the obligation to issue them follows in September 2026 for large companies, and in 2027 for SMEs and micro businesses.
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Sales, billing, and marketing natively connected
Your sales pipeline, billing, and marketing campaigns are directly linked, so there's no need for manual re-entry or syncing between tools.
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A proven track record
A billing solution trusted for over 16 years, with more than 22,000 customers. 25% of Sellsy's new customers come from referrals.
Integrated, responsible AI
Sellsy AI (powered by Mistral AI, a French company) helps you draft emails and content, summarizes your customer records, and transforms your imported data, without ever using your data to train third-party models.
Streamline your sales and financial management with Sellsy
Ready to make the switch?