Sketch the workflow first
Map outgoing invoices, incoming invoices, approvals, archive and handoffs on one page.
Momentum Advisory Management consultancy The checklist structures the practical review areas: scope, formats, master data, creation, receiving, validation, archiving and handoff to accounting or tax advisory processes.

Use the list for a first internal review. Critical invoice types or international contexts still need specific professional review.
| Area | Question | Good evidence |
|---|---|---|
| Scope | Which outgoing and incoming invoices are affected? | List by customer group, country, invoice type and exception. |
| Format decision | When are XRechnung, ZUGFeRD, Peppol or special formats relevant? | Decision rule by recipient and workflow. |
| Master data | Are customer, tax logic, service period, references and payment data complete? | Mandatory-field matrix and ownership. |
| Creation | Is the e-invoice created from structured data rather than risky after-the-fact conversion? | Source system, mapping, test file and validation. |
| Receiving | Can incoming XML or hybrid invoices be rendered and assigned? | Receiving channel, visualisation, duplicate logic and status. |
| Validation | Who checks syntax, mandatory fields, business rules and business plausibility? | Validation log and approval process. |
| Archiving | Are original file, visual copy, attachments and review status retained traceably? | Archive rule with version, access and retention path. |
| Handoff | How do invoice, documents, status and commentary reach accounting? | Month-end package with clear ownership. |

The infographic shows a compact preview of the workflow checklist with eight review domains, status logic, priorities and evidence for the internal review.
Map outgoing invoices, incoming invoices, approvals, archive and handoffs on one page.
XRechnung, ZUGFeRD, Peppol or national formats are decided by recipient and invoice type.
Not every gap blocks the start. Critical gaps are mandatory fields, validation, ownership and traceability.
Start with a few recurring invoice types before automating every exception.

English PDF checklist for international finance teams working through German e-invoicing requirements.