Does Parseo work with B1?

Yes. Parseo connects to B1 (Site.pro Accounting) over its REST API and pushes invoices straight into purchase or sale documents.

What do I need to connect B1?

Just an API key from your B1 settings. You enter it in Parseo and pick the warehouse, employee and operation types to use.

Do I have to create suppliers and products by hand?

No. Before each push Parseo matches the supplier by company code, VAT number or name, and the product by code. Anything missing is created in B1 automatically.

Does the original document reach B1?

Yes. Once the document is created, the original file is attached to it, so in B1 you see both the record and the document behind it.

What happens if I push the same invoice twice?

Parseo finds the record it created earlier and updates it instead of creating a duplicate.

Which custom fields can be filled in?

Ten: operation type, warehouse, employee and notes at invoice level; cost centre, expense account, VAT register and accountant comment at line level; item attribute and unit of measure at product level.

Do credit invoices work?

Yes. Credit invoices are pushed as return operations under a separate operation type that you choose in the settings.

Invoices into
B1

Q: Where do the values for rules come from?

From your own B1 — warehouses, operation types, cost centres, the chart of accounts, item attributes, units of measure, currencies and employees are all synced, so your rules pick from real values.

The invoice arrives by email — Parseo reads the data, your rules fill in the accounting fields, and the document is pushed straight into B1 (Site.pro Accounting) over the API. The original document is attached to it.

Parseo

Sujungta

Contacts stay in sync

Products stay in sync

Custom fields

Direct push

AI extracts

Upload Your First Invoice Book a Demo

50 free credits when you register. No commitment.

Direct API to B1

Parseo

Sujungta

Contacts stay in sync

Suppliers are matched by company code, VAT number or name, and missing ones are created

Products stay in sync

Products are matched by code, and new ones are created with a unit and an attribute

Custom fields

Operation type, warehouse, cost centre and expense account, filled from your rules

Direct push

The document and its lines appear in B1 automatically, with no manual steps

Sąskaitos kelias

AI extracts

HowParseo + B1 Integration Works

From supplier email to B1 — everything happens automatically, no action needed from you

The invoice arrives by email

Every client gets their own Parseo mailbox. Suppliers send invoices straight to it — nothing to upload.

AI reads the data

Parseo extracts the supplier, totals, VAT rates and line items from a PDF, scan or photo. Works in 50+ languages.

Rules fill in the fields

Your rules assign the operation type, warehouse, cost centre and expense account. VAT classifications are pulled from your own B1 and applied to every line.

The invoice appears in B1

Parseo creates the document over the API, adds the lines and attaches the original. Push the same invoice again and the existing record is updated rather than duplicated.

What datais transferred?

All data needed for a complete invoice entry in the accounting system

Invoice data

Supplier and buyer — name, company code, VAT number

Country, email and phone

Document series, number, date and due date

Net amounts, VAT amounts and the total

Currency — for non-euro invoices the exchange rate is handled automatically

Line items — product code, name, quantity, price and VAT rate

A VAT classification on every line

The original document, attached to the record in B1

B1 fields

Operation type

Warehouse

Employee

Notes

Cost centre

Expense account

VAT register (EU / non-EU)

Accountant comment

Item attribute

Unit of measure

How does the technical integration work?

Parseo connects to B1 over its REST API — all it needs is an API key from your B1 settings. Invoices are pushed straight into purchase or sale documents, and before each push Parseo checks contacts, products and VAT classifications. The whole path from the email to the record in B1 runs with no manual steps.

Direct API

The values come from your own B1

Parseo pulls warehouses, operation types, cost centres, the chart of accounts, item attributes, units of measure, currencies and employees out of B1, so your rules pick from your real B1 values instead of codes typed from memory. Before each push, missing suppliers and products are created in B1, every line is given its VAT classification, and credit invoices go across as return operations under their own operation type.

B1API

Direct push over the APILive

Contact syncLive

Product syncLive

VAT classificationsLive

Original attachedLive

Custom fields10 fields

Do you keep control?

Yes. Before exporting to B1, you can always review and confirm the data. The system learns from your corrections, improving accuracy over time.

How is data security ensured?

Data transmitted via encrypted connection (SSL)

Stored on European Union servers

Compliant with GDPR requirements

Parseo has no direct influence on B1 operations

How long does integration setup take?

Usually 15–30 minutes. No developers or additional IT infrastructure needed. You can configure the integration yourself.

Start for free

FAQ

Got questions? We have answers.

We understand — a new system raises questions. Here are honest answers to the most common concerns we hear.

You can start your first test within 15–30 minutes. Connect your email inbox, configure the integration with your accounting system, and upload your first invoices. No IT assistance or technical expertise is required.

Knowledge Center

What is invoice digitization?

Complete guide — from OCR to API connection with accounting software.

Read the guide

Other Integrations

Parseo also connects to other Lithuanian accounting software

Start using Parseo with B1

Try for free — no credit card required. Your first 50 credits are on us.

Try for free

Invoices into
B1

Parseo

Sujungta

Contacts stay in sync

Products stay in sync

Custom fields

Direct push

AI extracts

Upload Your First Invoice Book a Demo

50 free credits when you register. No commitment.

Direct API to B1

Parseo

Sujungta

Contacts stay in sync

Suppliers are matched by company code, VAT number or name, and missing ones are created

Products stay in sync

Products are matched by code, and new ones are created with a unit and an attribute

Custom fields

Operation type, warehouse, cost centre and expense account, filled from your rules

Direct push

The document and its lines appear in B1 automatically, with no manual steps

Sąskaitos kelias

AI extracts

HowParseo + B1 Integration Works

From supplier email to B1 — everything happens automatically, no action needed from you

The invoice arrives by email

Every client gets their own Parseo mailbox. Suppliers send invoices straight to it — nothing to upload.

AI reads the data

Parseo extracts the supplier, totals, VAT rates and line items from a PDF, scan or photo. Works in 50+ languages.

Rules fill in the fields

Your rules assign the operation type, warehouse, cost centre and expense account. VAT classifications are pulled from your own B1 and applied to every line.

The invoice appears in B1

Parseo creates the document over the API, adds the lines and attaches the original. Push the same invoice again and the existing record is updated rather than duplicated.