In some countries, invoices must follow a sequential numbering system to ensure proper accounting and prevent fraud.
If you’re already using bsport and haven’t set this up yet, this article explains how and when to activate sequential invoice numbering for your studio.
👉 If you already filled in your invoice numbering during onboarding, you don’t need to do anything.
What is sequential invoice numbering?
Sequential invoice numbering means that each new invoice gets a number that follows the previous one, without gaps or duplicates.
On bsport, an invoice number can include:
A prefix (optional)
A date (year, or year + month — mandatory)
A sequential number
A suffix (optional)
Example:
INV-2026-000004-FR
⚠️ Important note: Once this numbering is set up, it cannot be edited.
Who needs to set this up?
You need to take action if:
Your studio was created before this feature existed, and
You haven’t defined your invoice numbering yet.
If your studio is new and you already completed this step during onboarding, you’re all set ✅
If you already asked for sequential numbering to be done by bsport in the past, you will not be able to change the numbering from the back office.
Where to set up invoice numbering
Go to Settings > Billing in your bsport back office
Go to the Invoice numbering section
Define your numbering format (prefix, date, suffix)
Once confirmed, this configuration is locked and will apply automatically based on the start date you choose.
Choose when sequential numbering should start
You’ll be asked to select when sequential numbering should apply.
Option 1: Beginning of next month (recommended)
This option is ideal if you don’t use external accounting software.
All invoices created before next month keep their current ID
Invoices created from next month onward will use sequential numbering
The numbering will start at 1
Option 2: Beginning of current month
This option is mainly for studios that already use external accounting software.
Sequential numbering is applied retroactively to invoices created since the start of the current month
In the interface, existing invoices will display the new sequential number
Invoice PDFs created in the past will still show their original ID (PDFs cannot be edited)
All new invoices will have the correct sequential number both in the interface and on the PDF.
Using an external accounting software?
If you recreate bsport invoices in another accounting tool, you can make sure both systems stay aligned.
First select "Beginning of current month" as start date
Then, enable the option “I use an external accounting provider”
Choose the starting number for bsport invoices
We recommend:
Checking the last invoice number used in your external software
Adding +1
Using that number as the starting point on bsport
This ensures continuity between both systems.
⚠️ Important to know ⚠️
Once invoice numbering is set, it cannot be changed
Invoices created before activation keep their original ID
Sequential numbering applies only to invoices created on bsport


