
Connecting to the ABRA Flexi accounting system
Set up in three steps
The integration is configured directly in Capitain. No agent required, no installation on your computer.
Server & login
Enter the ABRA Flexi server address and your API credentials.
Select company
Capitain loads the accounting entities and you select the one you want to connect.
Synchronisation
Reference data (code lists) are downloaded and you transfer documents with a single click.
Under the bonnet
ABRA API
Communication runs directly through the official ABRA API.
No agent required
Nothing is installed on your computer or server.
Encrypted credentials
Your ABRA Flexi login credentials are stored in encrypted form.
Transfer status
For every document you can see whether it transferred successfully or why it failed.
Synchronisation details
A complete overview of the fields transferred between Capitain and ABRA Flexi.
| Field on document | ABRA Flexi (integration) |
|---|---|
| Document (header) | |
| Document type | Yes |
| Document series | Yes |
| Document number | Yes |
| Issue date | Yes |
| Tax point (DUZP) | Yes |
| Due date | Yes |
| Posting date | Yes |
| Variable / constant / specific symbol | Yes |
| Payment method | Yes |
| Currency | Yes |
| Description, note | Yes |
| Cost centre | Yes |
| Posting rule | Yes |
| VAT classification | Yes |
| VAT control statement classification (SK) | Yes |
| Debit / credit account | Yes |
| Tax records | Yes |
| Counterparty | |
| Company name | Yes |
| Company ID (IČO) | Yes |
| VAT number (DIČ) | Yes |
| Street, city, postcode, country | Yes |
| Bank account number, bank code | Yes |
| IBAN, BIC / SWIFT | Yes |
| No | |
| Phone | No |
| Fax | No |
| Web | No |
| Line items | |
| Description | Yes |
| Quantity | Yes |
| Unit of measure | Yes |
| Unit price | Yes |
| VAT rate | Yes |
| Base, VAT, total | Yes |
| Cost centre | Yes |
| Posting rule | Yes |
| Account | Yes |
Frequently asked questions
Does it work with both the cloud and self-hosted ABRA Flexi?
Yes. It works with cloud-hosted ABRA Flexi as standard. We can also connect your own on-premise installation — however, this needs to be arranged in advance via podpora@capitain.app so we can prepare and configure the integration together.
Which direction does data flow?
Documents and line items flow from Capitain to ABRA Flexi. Code lists (cost centres, chart of accounts, posting rules, document series) are pulled from ABRA Flexi in the opposite direction. Counterparties are not imported from ABRA Flexi — when sending an invoice, Capitain looks up the counterparty by company ID (IČO) and VAT number (DIČ) in ABRA Flexi and, if not found, creates it.
How often is data synchronised?
Documents are transferred on demand with a single click. Code lists are synchronised on connection, and users can request a fresh pull from ABRA Flexi manually at any time afterwards.



