Will the integration keep working after WooCommerce or the accounting software is updated?

Usually yes. We build integrations using official APIs and the extension methods provided by the platform developers, rather than changing the platform's own code, so routine updates don't break them. However, providers sometimes change their APIs – then the integration needs adapting. During the 12-month warranty, we fix bugs free of charge; after that, updates are carried out under a maintenance agreement.

Will we have to change our online store or its design?

No. The integration runs in the background and passes data between systems, so your store's design and checkout stay the same. The exception is payment and shipping integrations: they add payment methods or a parcel locker choice at checkout, styled to match your design.

Which payment methods can be added to an online store?

Those offered by your chosen payment provider: usually bank links, payment cards, Apple Pay and Google Pay, and some providers also offer instalments. We can integrate Paysera, Montonio, Stripe or PayPal. You sign the contract with the provider yourself, and we set up and test the payments in test mode.

Can shipping labels be created right in the online store?

Yes. Once Omniva, DPD, LP Express or Venipak is integrated, the customer chooses a parcel locker or courier at checkout, and you create and print the label in the online store's admin area. The tracking number is saved to the order and sent to the customer. The integration requires your contract with the courier service and the API login details it provides.

Can we import products from several suppliers?

Yes. Each supplier's XML, CSV or API data is standardised to your categories and attributes, and mark-up rules are applied to prices. The import runs on a schedule – for example, nightly or hourly, depending on what the supplier supports. Products the supplier no longer has can be hidden automatically or marked as awaiting stock.

Is the integration secure?

Yes. Access keys are stored on the server, not in the browser. The connection is encrypted (HTTPS), and the integration gets only the permissions it needs – for example, to create invoices but not to change the software's settings. If customers' personal data is transferred, we discuss how it is handled in line with the GDPR.

Integrations for online stores and business systems

System integration means data passes automatically between your online store, accounting software, payment and shipping providers, suppliers and CRM, so orders, invoices and stock levels don't have to be re-keyed by hand. Saitai.lt integrates WooCommerce, VirtueMart and custom online stores with the systems commonly used in Lithuania, and with other software too. Prices start at €150, with timelines from 2 working days.

Get a quote How much does it cost?

Prepared by the Saitai.lt team · Updated 6 October 2026

In short

Price: from €150 (payment or shipping provider); accounting software integration from €490; no VAT is added
Timeline: 2–7 working days (payments, shipping); 1–2 weeks (accounting, ready-made module); 2–6 weeks (custom integration)
Platforms: WooCommerce, VirtueMart, custom online store (Laravel)
Systems: accounting software (e.g. the Lithuanian Rivilė and B1.lt), Paysera, Montonio, Stripe, Omniva, DPD, LP Express, Venipak, supplier XML and CSV feeds, CRM and other software
Methods: APIs (REST, SOAP), XML and CSV files, scheduled sync
Warranty: 12 months
Payment: 50% deposit, balance when the integration goes live
Where we work: remotely, all over Lithuania; meetings in Vilnius by appointment, arranged by phone

Who it’s for

Your accountant enters every online store order into the accounting software by hand.
Stock levels in your online store don't match the warehouse, so you sometimes sell items you no longer have.
Your supplier sends prices and stock levels as an XML or CSV file, and you update them by hand.
You create shipping labels on the courier's website and send tracking numbers to customers yourself.
Customers want to pay by bank link (straight from their online bank) or by card, but your store only accepts bank transfers.
Enquiries and orders need to reach your CRM rather than sit in an email inbox.

When it’s not the right fit

You get a few orders a month. Then moving data by hand costs less than an integration and its upkeep.
There's an official provider plugin for your platform, and the default settings are enough for you. You can install it yourself by following the provider's instructions.
The system has neither an API nor a data import and export option. Then automatic integration isn't possible – you first need a solution from the vendor.

Services

What do we integrate?

Accounting software integration with your online store

Orders and invoices from your online store go into Rivilė, B1.lt, Centas or other accounting software, while products and stock levels are updated in the store.

from €490

Payment gateway integration: Paysera, Montonio, Stripe

Bank links, payment cards and other methods the provider offers, with the order status changing automatically once paid.

from €150

Shipping integration: Omniva, DPD, LP Express

Parcel locker choice at checkout, shipping labels from the online store's admin area and a tracking number in the customer email.

from €150

Product import and sync (XML, CSV, API)

Supplier products, prices and stock levels updated on a schedule – with no manual copying, following your mark-up rules.

Integration with Pigu.lt, Varle.lt and other marketplaces

Products, prices and stock levels from your online store are sent to the marketplace as an XML file or via an API – in line with its requirements.

API integration

We connect your website, CRM, accounting, warehouse and third-party services via REST or SOAP APIs, and build APIs for your partners when needed.

Integrations diagram: the online store automatically exchanges orders, invoices and stock levels with accounting software, payment providers (Paysera, Montonio, Stripe), shipping providers (Omniva, DPD, LP Express) and supplier product files (XML, CSV, API)

Included

What you get

Data flow diagram

Before any coding, we set out which data travels, in which direction and how often: orders, invoices, products, stock levels, payment and shipping statuses.

Ready-made module or custom solution

If a reliable, maintained module exists for your systems, we install and configure it. If not, we build the integration using APIs, following your rules.

Field mapping

We align product codes, VAT rates, units of measure, payment and delivery methods, and the details of private and business customers.

Error log and notifications

Every transfer is logged. If an order fails to transfer or stock levels fail to update, the person responsible gets an email, and the transfer can be repeated.

Testing with real data

We test the integration in a test environment or the provider's test mode, using your real orders and products, until you approve the result.

For your online store platform

We work with WooCommerce, VirtueMart and custom Laravel online stores. Other systems we connect via their APIs.

Guide and a 12-month warranty

We describe how the integration works and what to do when an error notification arrives. For 12 months, we fix integration bugs free of charge.

Price

How much does an online store integration cost?

Price from

€150

Integrating an online store with a payment or shipping provider costs from €150, and with accounting software from €490 when a ready-made module exists. For custom API integrations, supplier product imports or connecting several systems, we set the price once we have checked the systems' APIs and data volumes.

Prices include all taxes – no VAT is added (we are not VAT-registered). The final price depends on the project: we put it and the timeline in the contract before work starts.

Get an exact price

What the price depends on

Whether a ready-made module exists for the system, or the integration has to be built using its API.
How many data types are transferred and in which direction: one-way or two-way sync.
How many products and variants there are, and how often they need updating.
Whether existing data needs tidying up and mapping: product codes, categories, VAT rates.
Whether the system's vendor offers clear API documentation and a test environment.
How many online stores, warehouses, languages or currencies need connecting.

Additional costs

A fee for the accounting software's API or module licence, if the software vendor charges one – paid directly to the vendor.
Payment and shipping provider fees – under your contract with the provider.
Integration maintenance after the warranty (updates when a provider changes its API) – under a maintenance agreement, agreed separately.

Timeline

How long does an integration take?

A payment or shipping provider integration takes 2–7 working days, and an accounting software integration with a ready-made module 1–2 weeks from receiving the deposit and access. A custom API integration or a supplier product import takes 2–6 weeks, depending on the systems and data volumes.

Integration	Example	Price	Timeline
Payment provider	Paysera, Montonio or Stripe payments in your online store	from €150	2–5 working days
Shipping provider	Omniva, DPD or LP Express parcel lockers, labels, tracking numbers	from €150	3–7 working days
Accounting software (ready-made module)	orders and invoices transferred, stock levels updated	from €490	1–2 weeks
Custom integration, product import	supplier XML or CSV, two-way sync, several systems	quoted after assessment	2–6 weeks

Process

How it works

Free consultation1–2 working days
We discuss which systems need connecting, which data needs transferring and what is currently done by hand.
Systems check and fixed price1–3 working days
We check the API documentation, existing modules and test environment options. The price and timeline go into the contract, and we start once we receive the 50% deposit.
Data mapping1–3 working days
Together with you or your accountant, we agree product codes, VAT rates, and payment and delivery methods.
Development or configuration2 working days – 4 weeks
We install the module or build the integration, and set up the sync schedule and error notifications.
Testing1–5 working days
In test mode, we run through the whole journey: payment, shipping label, invoice in the accounting software, stock level update.
Launch and monitoring1–5 working days
We switch the integration on and check the log daily for the first few days to make sure all data is transferred correctly.
Warranty and maintenance12 months
For 12 months, we fix bugs free of charge. With a maintenance plan, we monitor the integration and update it when providers change their APIs.

Comparison

Manual work, a ready-made module or a custom integration?

Criterion	Manual transfer	Ready-made module	Custom integration (Saitai.lt)
Upfront cost	€0	from €150 (payments, shipping), from €490 (accounting)	quoted after assessment, depends on the API
Staff time each month	grows with the number of orders	only reviewing error notifications	only reviewing error notifications
Risk of errors	high: copying errors, missed orders	low, if the module fits your process	low; the rules are tailored to your process
Customisation	anything, but all done by hand	only what the module offers	your own rules: several stores, warehouses, B2B prices
Updates	not needed	handled by the module developer – you depend on them	under a maintenance agreement
Best for	a few orders a month	a standard process, when a module exists and is maintained	a non-standard process, or when there is no module

Examples

Typical projects

Online store and accounting software

Situation: For example, the accountant of a WooCommerce online store exports orders every evening and enters them into the accounting software, while the sales manager corrects stock levels in the store by hand.
Solution: Paid orders are transferred to the accounting software automatically as sales documents, and stock levels from the accounting software are updated in the online store on a schedule.
Result: Orders in the accounting software without re-keying, matching stock levels and the accountant's hours freed up for other work.

Product import from several suppliers

Situation: For example, an electronics online store sells products from several suppliers. Prices and stock levels come in different XML and CSV files, and updating them takes several hours every week.
Solution: A scheduled import downloads the supplier files, standardises categories, applies your mark-up and updates prices and stock levels. New products are created as drafts, so you can review the description before publishing.
Result: Up-to-date prices and stock levels, fewer cases of selling items the supplier no longer has, and control over new products before they go live.

Payments and shipping for a new store

Situation: For example, a new cosmetics online store only accepts bank transfers, and a member of staff creates shipping labels on the courier's website and sends tracking numbers to customers separately.
Solution: Montonio or Paysera payments with automatic order status updates, parcel locker choice at checkout, shipping labels from the online store's admin area and a tracking number in the customer email.
Result: More ways for customers to pay, orders without manual payment checks, and labels in a few clicks.

Tell us what you want to connect – we'll check it for free

Let us know your online store platform and the systems it needs to connect to. Within 1 working day, we'll tell you whether it's possible, how much it would cost and how long it would take.

Get an estimate

FAQ

Frequently asked questions

Tell us which systems you use – we'll check for free. Integration is possible if the system has an API or at least a data import and export option (XML, CSV). We check the documentation, existing modules and whether the vendor provides test access. Within 1 working day, we'll tell you whether the integration is possible, how much it would cost and how long it would take.

More

Get an integration quote within 1 working day

Tell us which platform your online store runs on and which systems it needs to connect to. If you have one, add a link to the supplier's API or XML documentation. Tel. +370 670 99265.

Phone / WhatsApp / Viber:
+370 670 99265

Email:
info@saitai.lt

We reply within 1 working day. Meetings in Vilnius are by appointment only – please call first.