Start with this:

Maintenance - always your product, always your location

Repairs - always customer product, always your location

Field Services - always customer product, sometimes customer location / sometimes your location

Also look at your need to use Sales Orders, Subscription Services, Tasks, Timesheets and Worksheets to understand if you are the exception to this "rule".

Each app is designed for a specific use case:

• Maintenance → Internal equipment at your own location (preventive or corrective).
• Repairs → Customer products, handled at your location (often warranty/service-based).
• Field Services → Customer products, but serviced at the customer’s location (installations, site visits).

So, the choice depends on who owns the product and where the work happens.

Odoo's Maintenance, Repairs, and Field Services apps serve distinct purposes despite their similarities.

  Use the Maintenance app for managing internal equipment maintenance schedules and preventive tasks.

  Opt for the Repairs app when handling product repairs, especially those involving warranty or customer service.

  Choose the Field Services app for managing on-site services, such as installations or customer visits.

If you’d like to explore this further for your use case, you’re welcome to connect with us at Pragmatic Techsoft.