Custom label support for customer and supplier invoices

Customer and Supplier Invoice endpoints now accept a label field, allowing you to set a custom label instead of the automatically generated one.

When label is provided, the automatic label computation is skipped. If omitted, the default behavior is unchanged.

Constraints:

Maximum length: 2000 characters. Requests exceeding this limit return a 422 error.

Affected endpoints:

Customer invoices

• Create a customer invoice
• Import an invoice with file attached
• Update a customer invoice

Supplier invoices

• Import a supplier invoice with a file attached
• Update a supplier invoice