missive & Slack
Let Slack handle what missive used to require by hand
GetMyInvoices automatically downloads documents from missive and forwards them to Slack, replacing manual retrieval and filing.


Why connect missive with Slack?
GetMyInvoices automatically retrieves your missive invoices and delivers them to Slack. It logs in to your missive account for you, fetches every new invoice as a PDF plus structured data, sorts and validates it, and exports it to Slack booking-ready. One connection covers every missive account and recurring billing period.
- Automatic retrieval to Slack: connect missive once, never log in for an invoice again.
- Booking-ready in Slack: 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 missive to Slack automatically
Three things happen automatically once missive is connected, so your invoices reach Slack without manual work.
Retrieves every missive invoice
GetMyInvoices logs in to missive 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 Slack
Invoices and their data are exported to Slack, ready for your tax advisor to book. No re-typing, no missing receipts.
Proven performance by GetMyInvoices
''From missive login to Slack in four steps''
Set it up once. After that, every missive invoice finds its way into Slack on its own.
- 1
Connect your missive account
Add missive 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 missive 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 Slack
Invoices and their data are exported to Slack on your export schedule, ready for your tax advisor to book.
missive also exports to these systems
Your missive login stays protected
From the missive login to the Slack export, we treat your credentials and your invoices accordingly.
Encrypted, or no password at all
Your missive login is stored encrypted and cannot be viewed by GetMyInvoices staff. Prefer to store no password? Bring your missive 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 missive invoice is archived in a GoBD-compliant way, with the original document kept alongside its data.
About missive & Slack

missive
Missive is a tool for team communication via email, where invoices for subscriptions or additional services regularly accrue. These receipts must be recorded for accounting. Automatic downloading saves you the tedious manual searching and collecting of individual documents.

Slack
Slack is the integration that receives your missive invoices and receipts. GetMyInvoices downloads them automatically and hands them over ready to book — no manual downloading needed.
GetMyInvoices sits between missive and Slack: it downloads the invoice at missive and delivers it to Slack, ready to book.
Frequently asked questions about missive, Slack and GetMyInvoices
Connect your missive 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 missive console again.
Your missive 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 missive 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 Slack 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 missive invoices arrive booking-ready in the tool your accounting uses.
GetMyInvoices archives your missive 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 missive invoices in GetMyInvoices right away. The Slack export is available once you or your tax advisor connect Slack. 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 Slack so your tax advisor can book without re-typing.
Ready to automate your
missive invoices?
Try GetMyInvoices with no obligation and start collecting your missive invoices automatically, straight into Slack.











































































