Mixmax & ProSonata
Every Mixmax invoice, automatically routed to ProSonata
GetMyInvoices connects to Mixmax, detects new invoices and receipts, and forwards them to ProSonata for you.


Why connect Mixmax with ProSonata?
GetMyInvoices automatically retrieves your Mixmax invoices and delivers them to ProSonata. It logs in to your Mixmax account for you, fetches every new invoice as a PDF plus structured data, sorts and validates it, and exports it to ProSonata booking-ready. One connection covers every Mixmax account and recurring billing period.
- Automatic retrieval to ProSonata: connect Mixmax once, never log in for an invoice again.
- Booking-ready in ProSonata: the PDF plus the structured data your accounting needs.
- Built for many accounts: agencies, IT service providers and tax firms in one dashboard.
Over 20,000 businesses rely on GetMyInvoices














From Mixmax to ProSonata automatically
Three things happen automatically once Mixmax is connected, so your invoices reach ProSonata without manual work.
Retrieves every Mixmax invoice
GetMyInvoices logs in to Mixmax Cloud and Robot on a schedule and downloads each new invoice for you, including past invoices still available in your account.
Captures the data, not just the PDF
Each invoice is read, sorted and enriched with structured fields like invoice number, date, net, gross and VAT, then archived in a GoBD-compliant way.
Delivers your invoices to ProSonata
Invoices and their data are exported to ProSonata, ready for your tax advisor to book. No re-typing, no missing receipts.
Proven performance by GetMyInvoices
''From Mixmax login to ProSonata in four steps''
Set it up once. After that, every Mixmax invoice finds its way into ProSonata on its own.
- 1
Connect your Mixmax account
Add Mixmax in GetMyInvoices and enter your login once. The connection is stored securely and used only to fetch your invoices.
- 2
Invoices are retrieved automatically
GetMyInvoices logs in for you on a schedule and downloads every new Mixmax invoice as a PDF plus structured data. No manual login required.
- 3
Data is prepared for booking
Each invoice is sorted, validated and enriched with the fields your accounting needs, then archived in a GoBD-compliant way.
- 4
Export to ProSonata
Invoices and their data are exported to ProSonata on your export schedule, ready for your tax advisor to book.
Mixmax also exports to these systems
Your Mixmax login stays protected
From the Mixmax login to the ProSonata export, we treat your credentials and your invoices accordingly.
Encrypted, or no password at all
Your Mixmax login is stored encrypted and cannot be viewed by GetMyInvoices staff. Prefer to store no password? Bring your Mixmax invoices in by email instead, through a dedicated GetMyInvoices inbox.
Hosted in Germany, GDPR
GetMyInvoices is GDPR-compliant and hosted in Germany. All data is transferred over HTTPS.
GoBD-compliant archive
Every Mixmax invoice is archived in a GoBD-compliant way, with the original document kept alongside its data.
About Mixmax & ProSonata

Mixmax
Mixmax is a software for sales engagement and email automation. Using it incurs invoices for subscriptions or add-on features that need to go into accounting. Automated document processing eliminates the need to manually download and forward these receipts.

ProSonata
ProSonata is the integration that receives your Mixmax invoices and receipts. GetMyInvoices downloads them automatically and hands them over ready to book — no manual downloading needed.
GetMyInvoices sits between Mixmax and ProSonata: it downloads the invoice at Mixmax and delivers it to ProSonata, ready to book.
Frequently asked questions about Mixmax, ProSonata and GetMyInvoices
Connect your Mixmax account in GetMyInvoices once. From then on, GetMyInvoices logs in for you on a schedule and retrieves every new invoice as a PDF plus structured data, without you opening the Mixmax console again.
Your Mixmax credentials are stored encrypted and cannot be viewed by GetMyInvoices staff. They are used only to retrieve your invoices. GetMyInvoices is GDPR-compliant, hosted in Germany, and transfers all data over HTTPS.
If a login stops working, for example after a password change, GetMyInvoices flags the connection in your dashboard and notifies you. You update the credentials once and automatic retrieval continues.
Yes. You can connect multiple Mixmax Cloud and Robot accounts and manage them from one GetMyInvoices dashboard. This is built for agencies, IT service providers and tax firms handling many clients.
To ProSonata and more than 50 further integrations such as Lexware Office, sevdesk, Addison, Google Drive and Dropbox. You can also export in formats like CSV, ZUGFeRD and X-Rechnung. Your Mixmax invoices arrive booking-ready in the tool your accounting uses.
GetMyInvoices archives your Mixmax invoices in a GoBD-compliant way and keeps the original document alongside the extracted data. GoBD-compliant does not mean GoBD-certified; please confirm the specifics for your setup with your tax advisor.
No. You can start retrieving and organizing your Mixmax invoices in GetMyInvoices right away. The ProSonata export is available once you or your tax advisor connect ProSonata. Everything else works without it.
Alongside the original PDF, GetMyInvoices captures the structured fields such as invoice number, date, net and gross amounts and VAT, and passes them to ProSonata so your tax advisor can book without re-typing.
Ready to automate your
Mixmax invoices?
Try GetMyInvoices with no obligation and start collecting your Mixmax invoices automatically, straight into ProSonata.











































































