🔗 Pennylane Connection to Fotostudio

What is Pennylane?

Pennylane is a French accounting software for SMEs and accountants. The connection with Fotostudio allows you to automatically synchronize your accounting documents (invoices, payments, credit notes) to Pennylane, without any re-entry.

What the integration does

Once activated, the integration automatically sends to Pennylane:

How to connect Pennylane

Step 1 — Generate your API key in Pennylane

1. Log in to your account on app.pennylane.com
2. Go to Settings → Connectivity
3. Click on the Developers tab
4. Click on Generate an API token
5. Choose Unlimited for the validity period and check the warning box
6. At the next step, in permissions, check read and write: Customer management, Customer invoice management, Supplier invoice management, Transaction management, Supplier management
7. Finalize and copy the displayed key (it will only be visible once)

Step 2 — Configure Pennylane in Fotostudio

1. In Fotostudio, go to Accounting → Settings → Accounting synchronization
2. Click on the Configure a service button
3. Scroll down to the Pennylane section
4. Paste your API key in the API Key field
5. Click on Test connection to verify the key is valid
6. Check Enable synchronization with Pennylane
7. Click on Save

ℹ️ You can only enable one accounting software at a time. If you were using SevDesk or Lexware, activating Pennylane will automatically disable it.

How synchronization works

Automatic synchronization

As soon as Pennylane is activated, synchronization triggers automatically:

• When an invoice is finalized
• When a payment is recorded
• When a credit note is issued and finalized

You don't have to do anything manually.

Manual synchronization

From the Accounting synchronization page (/app/accounting_sync), you can:

• See the synchronization status of each document (success, error, pending)
• Manually trigger synchronization of a specific document
• Re-synchronize a document in case of error

Idempotence

Synchronization is protected against duplicates: if an invoice or credit note has already been sent to Pennylane, Fotostudio detects it and doesn't create a duplicate. Clients are also created only once, uniquely identified via their internal reference.

Supported countries and VAT rates

The integration handles official Pennylane VAT codes for the following countries:

View synchronization history

Go to Settings → Accounting synchronization → History to see:

• The list of all synchronized documents
• The status of each synchronization (success / error / pending)
• Error details in case of failure

Common issues

"Missing API key"

The API key is not provided or empty. Check that it's properly entered in the settings and that the integration is activated.

"Unable to create/retrieve Pennylane client"

The contact associated with the invoice cannot be found or is incomplete. Check that the invoice is properly linked to a contact in Fotostudio.

"Invoice not synchronized with Pennylane"

A payment is recorded but the corresponding invoice hasn't been synchronized yet. Synchronize the invoice first, then re-synchronize the payment.

Connection error

In case of network error or timeout, synchronization fails with "error" status. You can re-synchronize manually from the History page. If the problem persists, check that the API key is still valid on the Pennylane side (it can be revoked from Pennylane settings).

Frequently asked questions

Are invoices already issued before activation synchronized?
No, automatic synchronization only applies to documents created after activation. Previous documents can be synchronized manually from the Accounting synchronization page.

What happens if I disable Pennylane and then reactivate it?
Documents already synchronized keep their link with Pennylane. New documents will be automatically synchronized again. No duplicates will be created.

Can I use Pennylane and another accounting software at the same time?
No, only one accounting software can be active at a time in Fotostudio.

Is Pennylane available for all Fotostudio subscriptions?
The Pennylane integration is available for all users with access to the billing module.

Updated on: 09/07/2026