
The extension allows you to print shipping labels for the Finnish postal service Posti directly from your online store’s admin panel and to offer your customers Posti’s delivery services and collection point options at the checkout.
Delivery services supported by the extension
The MyCashflow OmaPosti Pro extension supports the following Posti delivery services, some of which are suitable for domestic shipments within Finland and some for international shipments:
- Postal Parcel : delivery to a Posti pickup point
Additional shipping method services :
- Fragile
- LQ - low quantity of dangerous substance
- Large
- Small Parcel to Door : delivery to the recipient's mailbox, slot, or behind the door
- Home Parcel : delivery to the recipient's address at an agreed time
Additional shipping method services :
- Call before delivery
- Fragile
- LQ - low quantity of dangerous substance
- Large
- Express Parcel : express delivery for business customers
Additional shipping method services :
- Call before delivery
- DLV00 or DLV09
- Saturday delivery
- Fragile
- LQ - low quantity of dangerous substance
- Large
- Express Freight : deliveries according to the address label for businesses and private customers
Additional shipping method services :
- Call before delivery
- DLV00 or DLV21 (suitable especially for private customers)
- LQ - low quantity of dangerous substance
See also the freight packaging types.
- Freight : pickup and delivery of shipments according to the waybill to the recipient's address
The Delivery to a Private Individual additional service is automatically activated if the recipient is a private individual.
See also the freight packaging types.
- Express Letter : delivery to the recipient within 1–2 business days
- Registered Letter : delivery to a Posti service point, where the shipment can be picked up against a receipt.
- Priority Letter with cash-on-delivery : delivery to a Posti pickup point, where the shipment can be collected.
The service requires that the online store has a cash on delivery payment method available.
- Priority Parcel : international parcel deliveries to the recipient's address or a pickup point worldwide
- EMS (Express Mail Service): international parcel express deliveries to the recipient's address worldwide
- Posti Parcel Baltic : parcel pickup point deliveries to Estonia, Latvia, and Lithuania
- Pickup Parcel : parcel pickup point deliveries to Sweden and Denmark
- Home Parcel : home deliveries of parcels to Sweden and Denmark
- Home Pallet : home deliveries of pallet freight to Sweden
- Parcel Connect : home delivery of parcels to several EU countries
- Express Business Day Parcel (EBD): express parcel deliveries for business customers to Europe
The extension does not support the Posti EBD pallet freight transport.
- SmartPost Parcel Connect Baltics: home deliveries or pickup point deliveries of parcels to several EU countries(the service is available for online stores operating in Estonia, Latvia, or Lithuania)
Additional shipping method services
Some transport services may include additional services that affect the handling or delivery of shipments. You can enable them in the shipping method settings under Additional services.
The additional services you select apply to all shipments that use that shipping method.
Additional delivery services have their own costs, which is worth considering when determining the shipping costs. Check the Posti website for the price list of parcel services and Express Freight.
The extension supports the following additional delivery services with matching transport services:
- Call before delivery: the courier informs the recipient of the time of arrival (Home Parcel, Express Parcel, Express Freight).
- Delivery time requests:
- DLV00: pickup in the morning, arrival during the same working day (Express Parcel, Express Freight).
- DLV09: delivered by the next business day by 9:00 AM Express Parcel
- DLV21: delivery time is agreed with the recipient; deliveries are made on weekdays from 9 a.m. to 9 p.m. in major cities, in other places from 9 a.m. to 4 p.m. (Express Freight).
The feasibility of delivery time requests varies depending on the place of departure and destination of the shipment. Check with Posti’s calculator what kind of delivery time is possible.
Only one delivery time request can be attached to each shipping method.
- Saturday delivery: enables delivery on Saturdays (Express parcel).
- Fragile: the shipment must be handled with care Postal Parcel, Home Parcel, Express Parcel
- Large: the size of the parcel may exceed the usual maximum dimensions Postal Parcel, Home Parcel, Express Parcel
- LQ - low quantity of dangerous substance: properly pack the dangerous substance and attach the LQ shipping label required by law (Home parcel, Express parcel, Express freight).
The weight of the hazardous substance must be filled in in the shipment details (enter a numerical kilogram value without the unit of measurement).
Installation and setup
1/4 Subscribing to OmaPosti Pro
2/4 Creating an API key
3/4 Installing the extension
- Go to your online store's admin panel page .
- Enable the OmaPosti Pro extension.
- Enter the API key you created in the Posti system into the extension details.
- Save the extension's settings.
4/4 Creating a shipping method
The Posti service you now selected is now available at the online store's checkout.
If you want to use several different Posti services in the online store, create a separate shipping method for each of them according to the instructions above.
Using shipping method-specific credentials
You can use several different OmaPosti Pro credentials in the online store by entering them in the OmaPosti Pro shipping method settings. This is useful, for example, if you have a separate Posti freight contract ID.
The shipping method you choose will now always use the credentials you assigned to it.
Using version-specific infocodes
An infocode is an identifier you specify for a store version, which is transmitted to Posti along with shipment details. Using infocodes, you can classify shipments by store version, even if they use the same Posti logistics contract ID. This makes it is easier to track the logistics costs of separate store versions.
Here's how you can define a version-specific infocode:
The infocode you specified is shown under Additional information on the extension’s setup page and serves as a specification detail in future invoices from Posti.
You can add a unique infocode for each store version by repeating steps 2–3.
Defining the sender's contact information
You can set your OmaPosti Pro sender address shown on address labels to
- the address entered in the contact details of the store's general settings
- the address entered in the contact details of the version settings or
- a separately defined address that is entered in the settings of the OmaPosti Pro extension.
Specify the sender's address in the section of the admin panel page Sender address.
If you change the sender's address in the settings, the new address will be included on the next address label printed for an order from the admin panel's order page.
Printing shipping labels
Here's how to print a OmaPosti Pro shipping label for an order:
Printing return labels
For eventual product returns you can configure the service to print a return label along with the address label.
Services with return label support
The following services available through the OmaPosti Pro integration provide a printable return label:
- Postal Parcel
- Posti Parcel Baltic
- Home Parcel
- Small Parcel to Door
- Parcel Connect
- Express Parcel
- Express Freight
Enabling return labels
Here is how to enable return label printing for a shipping method:
Once you have done this, the return label will be included as an additional page in all the address labels printed for this shipping method.
Using cash-on-delivery
To use cash-on-delivery, you must have in your online store
- a payment method that uses the Cash-on-delivery service.
- a shipping method that uses either the Postal Parcel or the Priority Letter with cash on delivery service.
The recipient collects a cash-on-delivery shipment from Posti's service point by paying the predetermined amount. If the shipment is delivered to a parcel locker, the recipient will be sent first the payment details and – after a successful payment – the pickup instrucions as SMS messages.
The cash-on-delivery payment sum consists of the order total, which includes possible shipping and payment fees. The sum will be transferred to your bank account within 2–4 business days.
To enable cash-on-delivery as a payment method in your online store:
When processing cash-on-delivery orders, mark the order as delivered when you ship it to the customer, but leave the payment open. Mark the payment as paid only once it has been credited to your bank account.
Shipping method-specific shipment and measurement details for customs
Generally, a shipping service requires customs information and measurements to be specified for shipments destined beyond the customs border (such as when shipping from the EU to other parts of the world; as a special case, this also applies to shipments between the Åland Islands and the rest of the EU). This can be implemented in the extension as follows:
- Product tariff codes (CN), countries of origin, and a free-form description of the shipment's contents (specified on the shipment information form)
- Priority Parcel
- EMS
- Express Letter
- Registered Letter
- Delivery to Åland Islands:
- Postal Parcel
- Home Parcel
- Express Parcel
- Default shipment description (specified on the. page)
- Postal Parcel
- Posti Parcel Baltic
- Home Parcel
- Small Parcel to Door
- Priority Parcel
- EMS
- Express Parcel
- Express Business Day Parcel
- Express Letter
- Registered Letter
- Priority Letter with cash-on-delivery
- Freight
- Express Freight
- Shipment width, height, and length (specified on the shipment information form)
- Freight
- Express Freight
If the shipment does not need to be cleared through customs and the delivery service does not otherwise require you to specify its actual dimensions, the OmaPosti Pro extension will use the default dimensions of 15 x 15 x 15 cm The outer measurements of the shipment must always be filled-in to the shipment details.
Freight parcel types
The extension supports several alternative freight packaging types for various transport units (colli) and pallet sizes. You can select the packaging type in the Freight parcel type section in the shipping method settings.
The following packaging types are available:
- Colli (KLL): max. length and width 700 x 180 cm, height 240 cm and weight 1200 kg
- Loose colli (KK): max. length 300 cm, length + circumference 500 cm and weight 35 kg
- Furniture pallet (HKLL): 200 x 80 cm, max. height 240 cm and weight 1200 kg
- FIN pallet (FIN): 120 x 100 cm, max. height 240 cm and weight 1200 kg
- EUR pallet (EUR): 120 x 80 cm, max. height 240 cm and weight 1200 kg
- Half pallet (TEHO): 80 x 60 cm, max. height 210 cm and weight 500 kg
- Metal cage (HKK): 120 x 100 cm, max. height 240 cm and weight 1000 kg
- Roll cage (RLL): 81 x 63 cm, max. height 210 cm and weight 250 kg
- Milk trolley (MRLK)
- Dolly (DLL)
- Package (PKT)
- Bundle (BE)
- Other transport unit (LAVA)
Also read Posti's instructions for freight shipping.


