Purchase Orders, Invoicing and payments

Gasunie is switching to ordering at entity level to respond more quickly and efficiently to the specific needs of its various business unit entities. This approach provides each entity with greater flexibility and clarity, improves cooperation and transparency towards suppliers, and helps to accelerate the energy transition. In addition, this change is necessary for Gasunie to comply with obligations imposed by the Authority for Consumers & Markets (ACM) under regulation.

Where you currently receive a purchase order from Gasunie, in future this will come from one or more Gasunie entities. Delivery should be made to the entity issuing the order, and invoicing should also be directed to that entity. The invoice will be settled by the entity. The impact of this contractual adjustment will differ per supplier and contract. In most cases, this involves a one-to-one change; for example, where previously Gasunie issued the purchase order, received the delivery, and paid the invoice, this will now be handled via Gasunie Transport Services B.V..

If the contract can be used by multiple entities, it is possible that other Gasunie entities will also apply the agreement in the future. This is particularly relevant as business units such as transport and storage of (green) gas, hydrogen, heat, and CO₂, as well as the entities involved, continue to develop. In such cases, you will receive purchase orders from several Gasunie entities, which must be delivered to and invoiced to those entities.

Although purchase orders are issued by different entities, coordination regarding contracts will remain with the central Procurement and Supply Chain department. Most often, your contact person for your agreement with Gasunie will remain the same unless otherwise notified.

The entity issuing the purchase order will be indicated on the purchase order as 'customer', including the name of the entity. Since several entities are registered at the same address, Gasunie's headquarters, the address cannot be used to uniquely distinguish the entity.

For both delivery and invoicing, the entity can only be distinguished by its name, as the delivery or invoice address is the same for several entities.

No, purchase orders issued by a (specific) Gasunie entity must be delivered to and invoiced to the requesting entity. Handling of deliveries and payments of invoices within Gasunie will also be carried out at entity level.

Yes, each Gasunie entity is a separate client, with its own VAT number and Chamber of Commerce (KVK) number. The entities issue purchase orders independently. Delivery and invoicing must also take place to the ordering entity, rather than to Gasunie.

You only need to record the entity as a client in your administration when you receive an order from that entity. You will only receive orders from entities whose contractually agreed items correspond to the activities and, therefore, the needs of that entity.

No, an order is issued by one entity and contains only order line items specific to that entity.

The number of existing orders that need to be migrated will be kept to a minimum. A replacement order will be provided if the delivery of a previously issued order occurs after 01/07/2026. If this applies to you, you will be contacted.

When delivering physical materials to the Central Warehouse in Deventer, it is important to note that from 01/01/2026 all goods will be received and stored per individual Gasunie entity. Therefore, we kindly ask you to pack materials separately per purchase order, with each package provided with its own delivery note.

N.V. Nederlandse Gasunie uses the SAP Business Network (SBN) to collaborate digitally with its suppliers for all its entities. If you currently collaborate digitally with Gasunie via SBN, you can also do so for other Gasunie entities via the SBN account of N.V. Nederlandse Gasunie. You can recognize the ordering entity by the company code (e.g. 1000, 1010, 1080, etc.) and the short company name shown in the order, as well as the entity-specific details in the sender, delivery address, and invoice address fields. You must process the order for that particular entity.

For outstandign invoices and invoice questions, please contact the Invoicing department via this form.

You can approach the PO requestor/contactperson of the PO. It is always a Gasunie employee.

Provided the invoice has gone through the entire approval process. We use our standard payment term of 30 days, unless otherwise agreed.

This is only possible if you have entered the invoice directly into Ariba SLP.

The invoices submitted by e-mail usually have a longer lead time than submission via the SBN. These invoices cannot be tracked.

PO failed: then the PO does not arrive correctly at your specified PO sharing e-mail address.
Partially invoiced: you can invoice the rest value of the PO. The rest value becomes visible as soon as you select the PO.

Invoice sent: the invoice has been submitted to Gasunie.
Invoice rejected: click on the invoice, go to the 'history', the reason for rejection will be mentioned in the history.
Invoice approved: the invoice has passed the approval process and is ready for payment. Payment date is invoice date (Ariba entry) + 30 calendar days.
Invoice paid: invoice has been paid (the payment date is available in the history tab within the invoice).

On your SBN account, it is possible that you can only submit an invoice if the VAT/BTW line is added. Be sure to add tax details to the line and set it to 21% or any other, only then will your invoice be accepted. For a number of suppliers, this is a new way of submitting invoices. If it is not possible to submit an invoice on a 46-PO number or any other new PO number, please contact the Procurement Desk.

Invoices can be submitted through SBN, please watch out for POs starting with, among other things, 46- numbers from the new Gasunie account with the name 'Nederlandse Gasunie N.V.' The old 521- PO numbers are still available but can no longer be invoiced. If you don't see the new orders, check the trade relationship. You can see here how to check whether the trade relationship has been successfully established.

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