Siemens AG
Siemens AG processes all incoming electronic invoices via the SupplyOn platform. Only structured e-invoices compliant with EN 16931 are accepted. Plain PDF invoices are rejected.
Accepted formats
ZUGFeRD
Hybrid PDF/A-3 with embedded XML. The PDF must visually match the XML data.
Version: 2.0.1 or higher | Syntax: CII
XRechnung
Pure XML, no visual document transmitted.
Syntax: UBL or CII
Not accepted
- Plain PDF invoices (no embedded XML)
- ZUGFeRD profiles MINIMUM and BASIC-WL
- ZUGFeRD versions below 2.0.1
- Encrypted or password-protected files
Submission channels
- E-mail to the invoice address stated on the purchase order — received and validated by SupplyOn.
- SupplyOn platform — direct transmission for integrated suppliers.
One invoice per e-mail. Maximum 15 MB per e-mail. Text in the e-mail body is ignored. Sending the same invoice through more than one channel is not permitted except in exceptional cases.
Required fields
| Field ID | Content | UBL path | CII path |
|---|---|---|---|
| BT-46 | Org-ID (Siemens customer number) | <cbc:BuyerReference> | ram:ApplicableHeaderTradeAgreement / ram:BuyerReference |
| BT-13 | Purchase order number | <cbc:OrderReference><cbc:ID> | ram:ApplicableHeaderTradeAgreement / ram:BuyerOrderReferencedDocument / ram:IssuerAssignedID |
| BT-132 | PO line number | <cac:OrderLineReference><cbc:LineID> | ram:IncludedSupplyChainTradeLineItem / ram:AssociatedDocumentLineDocument / ram:LineID |
| BT-126 | Invoice line number | <cbc:ID> | ram:IncludedSupplyChainTradeLineItem / ram:AssociatedDocumentLineDocument / ram:LineID |
| BT-156 | Supplier item identifier | <cac:Item><cbc:Name> | ram:IncludedSupplyChainTradeLineItem / ram:SpecifiedTradeProduct / ram:Name |
| BT-51 | P.O. box (seller postal address) | <cac:PostalAddress><cbc:Postbox> | ram:ApplicableHeaderTradeAgreement / ram:SellerTradeParty / ram:PostalTradeAddress / ram:Postbox |
All CII paths start with /rsm:CrossIndustryInvoice / rsm:SupplyChainTradeTransaction /
Supplier number and Siemens Org-ID must both be present. The PO number must be entered in the designated header field on its own, without additional text such as ARE information or order date.
Invoice rules
- One invoice per purchase order. Collective invoices covering several POs are not accepted.
- The ARE must appear as an address addition below the company name on invoices, credit notes and related correspondence.
- Attachments must be embedded in the e-invoice. Separate e-mail attachments are not processed.
- Negative line items are not allowed. Use a credit note, or record the reduction as an allowance in the designated fields at header or line level.
- Line item quantity must be greater than zero.
- Line totals must match unit price × quantity; header totals must match the sum of line items.
- Cash discounts, surcharges, deductions and freight belong in the allowance and charge fields, not in free text.
- BIC/SWIFT must not exceed 11 characters.
- The recipient address must include street or P.O. box.
Permitted attachment types
PDFJPEGJPGTIFTIFFTXTCSVXLSXDOCXXML
Rejection codes
| Code | Cause |
|---|---|
| E0051 | PDF is not PDF/A-3 or contains no embedded XML invoice |
| E0052 | Invalid ZUGFeRD version (2.0.1 or higher required) |
| E0053 | Invalid XRechnung or PEPPOL format, or XML syntax errors |
| E0060 | XML validation errors |
| E0070 | Conformity check against EN 16931 failed |
