Find documents instead of searching for them. Approvals that do not get stuck.
OXS.eco structures invoices, e-invoices, case files and archives for mid-sized companies, with personal support, secure operation and a fit with your existing systems.
app.oxs.eco · rechnungseingangAccounts payable
34 open · 12 in review · 8 approved today
Google Cloud in Frankfurt · aligned with GoBD · EN 16931 · data processing agreement available · personally supported
Six solution areas, one platform
From inbox to archive: each area works on its own, and together they form one continuous path for your documents.
Accounts payable & approval
Capture invoices in one place, check them and let your team approve them. Every step is logged automatically (audit trail), plus early payment discount monitoring and handover to your ERP.
Digital mailroom
Bundle incoming documents from email, scan, upload and SFTP, then route them to the right processes automatically.
E-invoicing
Receive and check XRechnung and ZUGFeRD. You write outgoing invoices in your ERP or accounting system as usual, and OXS.eco turns them into a valid e-invoice.
Audit-proof archiving
Store documents aligned with GoBD, monitor retention periods and have everything ready when an audit comes.
Digital case files
All documents for one customer, project or case in a single place, with role-based access and a full case history.
Document dispatch
Send outgoing mail digitally, track its status and archive the proof of dispatch with the case automatically.
Three workflows in detail.
Click through three typical paths, from inbox to handover. The other areas follow the same principle.
From inbox to approval
Email, upload, paper. Capture every invoice in one place, extract the fields, check them against your ERP and route them through multi-step approval with an audit trail and early payment discount monitoring.
- OCR and field recognition per supplier
- Multi-stage approval with deputies
- Early payment discount deadlines in view
- Handover to your ERP via interface
XRechnung & ZUGFeRD without the stumbling blocks
Receive XRechnung and ZUGFeRD via PEPPOL and email, validate them against EN 16931 and hand them straight into the approval workflow. Issuing invoices runs through the same platform.
- Receipt via PEPPOL and email
- EN 16931 validation
- ZUGFeRD readable as PDF, XRechnung data structured in the workflow
- Issuing: your ERP data becomes the finished e-invoice
Audit-proof, aligned with GoBD
Store documents so they cannot be changed, monitor retention periods and use full-text search. In a Betriebsprüfung they are retrievable without a long search.
- Immutable storage with signature
- Complete audit trail
- Retention periods configurable per document type, with a reminder to the responsible team
- Full-text search across case files and documents
Nine industries, one document path
High document volumes, clear retention obligations and approvals that cannot wait: OXS.eco maps the typical processes of these industries.
What sets us apart from enterprise DMS and isolated tools
Built for mid-sized companies
Built for accounting teams of five people and up. Not a corporate program with its own project organization.
One system instead of isolated tools
Accounts payable, e-invoicing, case files, mailroom and archive under one contract. Why one system →
Personal, not self-service
Real contacts for onboarding, workflows and interfaces. No ticket funnel.
Proven since 1986
MAAS has worked with insurance companies, banking and logistics for almost 40 years. We know the compliance details from real audits, not from white papers.
Frequently asked questions
You will find more detail in the full FAQ. Also useful before the call: the GoBD audit checklist.
What is OXS.eco?
OXS.eco is the DMSDMSDocument management system. Software for capturing, filing and working on digital documents in a structured way.Look it up in the glossary → platform from MAAS for digital document processes in mid-sized companies. It combines accounts payableAccounts payableThe whole process from receiving an invoice through checking and approval to posting it.Look it up in the glossary →, e-invoicingE-invoicingAn invoice as structured, machine-readable XML rather than a plain PDF. Mandatory in Germany from 2025.Look it up in the glossary →, digital case files and audit-proof archiving in one system.
When did the 2025 e-invoicing obligation start?
Since 1 January 2025, domestic B2B companies in Germany must generally be able to receive and process e-invoicesE-invoicesAn invoice as structured, machine-readable XML rather than a plain PDF. Mandatory in Germany from 2025.Look it up in the glossary →. OXS.eco covers receipt via PEPPOL and email.
How long does it take to roll out OXS.eco?
How long it takes depends on your intake channels, approval workflows and any data migration. We start with the use case that causes the most effort. Scaling and connecting further areas follow step by step.
What does OXS.eco cost?
The price is based on two factors: the number of users and your document volume. There are no list prices, we prepare custom quotes. Before the call you can get a rough estimate of the effort via the pricing model.
Hélène TinetInitial call, demo & onboarding
A 15-minute process check.
In an online meeting we walk through your current process and show where OXS.eco has the greatest effect. Accounts payable, e-invoicing, archiving. You talk to a person from the MAAS team.