Microsoft 365 & Outlook
Enterprise-grade invoice detection.
Built for finance teams and shared AP mailboxes. One Outlook rule forwards every software invoice to SubDupes, which extracts the spend data automatically, including from PDF attachments. No mailbox connection required.
- No mailbox access
- No app registration
- One Outlook rule
- No bank login required
- You forward it, or we never see it
- Encrypted in transit
- No mailbox access, ever
Easy for IT to approve.
Connecting a corporate Microsoft 365 environment normally means a security review. With SubDupes there is nothing to connect: a forwarding rule sends the invoices out, and nothing comes back in.
Shared AP Mailboxes
Built for finance teams. Put the rule on a shared inbox such as ap@company.com rather than individual employee accounts, and the data stays clean at the source.
Nothing To Authorize
No Graph API scopes, no IMAP credentials, no app registration to approve. The rule lives in Outlook and forwards messages outward, so there is no inbound access to grant.
Azure AD Compatible
Nothing to exempt from conditional access or MFA, because SubDupes never authenticates against your directory. Your existing Azure AD policies are untouched.
Only What You Forward
SubDupes never connects to your mailbox. It only sees the receipts you choose to forward, and they travel encrypted in transit.
How the data flows
- 01
Microsoft Outlook
You send it, we receive it
- 02
Receipt Detection
Non-receipts are skipped
- 03
Detail Extraction
Price, plan and dates read
- 04
SubDupes Dashboard
Clean, actionable data
Unlock data trapped in PDFs.
Most enterprise SaaS spend is hidden inside attached PDF invoices. SubDupes doesn't just read email subjects; it parses the attachments that actually contain the financial data.
PDF Attachment Parsing
Enterprise vendors often send invoices as PDF attachments rather than text emails. SubDupes reads the attached PDF to extract the plan, seats, and costs directly from it.
Automated Expense Matching
Once a PDF invoice is parsed, the engine categorizes the vendor and checks it against the subscriptions you already track, flagging it if it looks like a duplicate.
Continuous Extraction
Set the rule once. From then on, the moment a new invoice reaches the AP inbox it is forwarded and parsed, and your optimization dashboard updates on its own.
PDF Extraction Log
Seats: 125
Seats: 80
One rule in Microsoft 365.
Stop relying on manual spreadsheets. Point one Outlook rule at your SubDupes address and your software spend assembles itself, with no Graph API connection and no mailbox permissions.