WHMCS Addon PUQ KSeF Integrator


PUQ KSeF Integrator (WHMCS Addon Module)

Status: Development / Testing 
Compatibility: WHMCS 8+  
Requirements: PHP 8.2+

KSeF Integrator is a WHMCS module that helps you submit invoices to Poland’s KSeF (Krajowy System e-Faktur) using the official API. The module can automatically send invoices after the WHMCS invoice status becomes Paid, store the returned KSeF reference/confirmation.

Get the first year of the module FREE — pre-orders are collected via support ticket.

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    WHMCS Addon PUQ KSeF Integrator (1_year)
    €60,00 EUR
    Annually
    whmcs-logo-white.pngksef.png
    The module extends the standard functionality of the
    WHMCS system by integrating it with the official
    KSeF (Krajowy System e-Faktur) platform in Poland.
    It allows automatic creation, signing, and sending of invoices to KSeF fully compliant with Polish regulations.
    Automatic XML Invoice Generation (FA_VAT)
    XAdES Digital Signature Support
    Official KSeF API v2 Integration
    Compliance with Polish Tax Law
    Invoice Status Synchronization
    Secure Certificate & Token Management
    Multilingual Interface
    Flexible Configuration Options
    Grace period - You have 7 days to test module for free.

    KSeF Integrator is for companies in Poland using WHMCS who want to automate KSeF submissions and reduce manual invoicing work. It helps you submit invoices to KSeF through the official API, keep your invoice data consistent, and prepare your billing workflow for KSeF requirements.

    Key Features:

    • Automatic KSeF Submission: Automatically submits invoices to KSeF after the WHMCS invoice status becomes Paid.
    • KSeF Reference & Confirmation: Stores the returned KSeF number and confirmation data in WHMCS for traceability.
    • Email Notification (Optional): Optionally sends an email to the customer after the KSeF reference is received.
    • Multi-currency Invoices (Optional): Ability to store invoice currency data and use multiple currency fields in the KSeF workflow.

    Features for WHMCS Billing Teams:

    • Less Manual Work: Reduce time spent on uploading/sending invoices to external systems.
    • Clear Status Tracking: Keep the KSeF submission status and reference data attached to each invoice.
    • Consistent Accounting Flow: Keep WHMCS invoice data aligned with the KSeF acceptance date and reference.
    • Better Customer Communication: Optional emails provide customers with the KSeF reference and invoice delivery confirmation.

    Advantages:

    • Pre-Order Bonus: Place a pre-order and receive the first year of the module free.
    • Automation First: Designed to fit naturally into WHMCS (status-based workflow, minimal manual actions).
    • Transparent & Traceable: KSeF reference/confirmation is stored per invoice for easy verification.


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