13 · Resources
ERP for companies of 20 to 500 people: Odoo and Dolibarr
An ERP is the software that brings sales, purchasing, stock, invoicing and often accounting into a single database. For a team of 20 to 500 people it replaces spreadsheets and tools that do not talk to each other, provided the scope is defined before the tool is chosen.

Start with the guide
ERP for a company of 20 to 500 people: the guideAn ERP brings sales, purchasing, stock and invoicing into one database. This guide explains when it becomes useful, how to choose between Odoo and Dolibarr, and what makes the project succeed or fail.
20 articles

Practical guide5 min The topic guide
ERP for a company of 20 to 500 people: the guide
An ERP brings sales, purchasing, stock and invoicing into one database. This guide explains when it becomes useful, how to choose between Odoo and Dolibarr, and what makes the project succeed or fail.

Understand4 min
AI in an ERP: what really helps, what can wait
Reading supplier invoices, bank reconciliation, answering questions about the data: AI has solid uses in an ERP, others are still demos. The sorting, use by use.

Choose and price4 min
Choosing an ERP integrator: the questions that sort them
Every integrator promises a successful project. A few precise questions, on method, data, customisation and aftercare, make the difference between two proposals.

Understand4 min
Customising an ERP without getting stuck on the next version
Every custom development in an ERP is paid again at every upgrade. The three-level rule we apply: adapt the process, configure, and only then develop.

Choose and price4 min
Dolibarr: which companies it suits, and its limits
Dolibarr is a free ERP and CRM, simple to install and learn, that covers a stable scope well. Who it is made for, what it does well, and when to aim wider.

Practical guide3 min
Access rights in an ERP: who sees what, and why
In an ERP everyone shares the same database, and access rights say who sees margins, who approves a payment, who can delete an invoice. How to set them simply, and keep them up to date.

Choose and price3 min
ERP in the cloud or on your own server: how to choose
Hosted by the publisher, on a rented server or on your premises: an ERP's hosting changes the cost, control of data and operational work. The criteria to decide.

Practical guide4 min
Migrating your data into an ERP without making a mess
Data migration decides an ERP's first month. What to migrate, what to leave behind, how to clean and test the import before go-live.

Understand3 min
ERP for a services company: projects, time, invoices
A services company does not sell stock, it sells time and deliverables. What an ERP brings it when projects, time spent and progress billing become too heavy to reconcile.

Practical guide3 min
Inventory management in an ERP: what really changes
Reliable stock does not come from the software alone, but from rules kept at every movement. What an ERP brings to stock, the settings that matter and the opening stock count.

Understand4 min
Manufacturing in an ERP: bills of materials, orders, costs
When a company makes what it sells, the ERP must know what each product is made of and what it really costs. Bills of materials, manufacturing orders, work centres and cost price, without falling into an oversized industrial project.

Understand3 min
Multi-company ERP: several entities in one database
A subsidiary, a holding company, one company per country: managing several entities in one ERP avoids multiplying tools. What it takes, and the traps to avoid.