Case study • PHP
KSeF module for an in-house CRM
A working KSeF module based on cron tasks, with monitoring, logs and full error handling.

Business need
Transmobil's in-house CRM needed a working KSeF module.
My responsibility
I created the KSeF module for the in-house CRM in PHP.
Delivered solution
The module is based on cron tasks and includes monitoring, logs and full error handling. It fetches and sends invoices, creates offline invoices and generates KSeF-compliant QR codes.
Project outcome
The CRM has a working module for fetching, sending and creating invoices in the KSeF process.
Project context
From a business need to a working solution
Transmobil's in-house CRM needed a working KSeF module.
My role
I created the KSeF module for the in-house CRM in PHP.
Solution
Technology built around a real process
The module is based on cron tasks and includes monitoring, logs and full error handling. It fetches and sends invoices, creates offline invoices and generates KSeF-compliant QR codes.
Technology
A stack selected for the project requirements
The technical layer was selected to keep the solution fast, maintainable and well integrated with the existing environment.
- PHP
Outcome
The CRM has a working module for fetching, sending and creating invoices in the KSeF process.
Gallery
The project in practice
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