maG is a web application for the financial management of audiovisual and cultural productions, developed by maGestion.pro. Expenses, budgets, accounting entries, cash and sales are recorded per project in one place. Team members submit their expenses, department heads approve them, the production management validates them and the administration checks them before they go to accounting. Receipts can be captured by photo and assigned to the budget; funding and expenses from all projects are consolidated. The bookkeeper and the auditor each receive their own access.
maGestion.pro is a French SAS headquartered in Paris; the website names no parent company. According to the vendor, data is hosted in France and stays on French territory; the legal notice names AWS France as the host of maG. For your project data the vendor acts as processor and follows your instructions under the GDPR. AWS is a US-owned cloud provider, so even with hosting in France the US CLOUD Act may be relevant to access requests. Ask the vendor for written answers to your security questionnaire.