The Receipt Server for Charge Point Operators
How Stackbox closes the gap between charging session and payment – with automatically generated, legally compliant receipts for every charge. No manual effort. No compliance gaps.
01 · Challenge
Two data worlds. No shared receipt.
CPOs relying on ad-hoc payment terminals know the structural problem: charging data and payment data come from separate systems – and without an active bridge, they never come together. That costs time, creates stress, and carries real compliance risk.
Siloed Data Systems
The CPMS captures the charging session, tariff, and calculated price. The card transaction runs in parallel through the terminal and PSP. Neither side knows about the other.
Missing Link
Without a reliable mechanism to match the charging event with the payment, no complete, tax-compliant receipt is possible – not automatically, not in real time.
Manual Reconciliation Overhead
You have to reconcile transactions by hand. Across large charge point networks, this becomes a serious operational burden – with growing error risk.
Compliance Risk
GoBD-compliant archiving and the obligation to issue receipts are nearly impossible to fulfil reliably without an automated process – creating real legal exposure for you as an operator.
The charging infrastructure stack is missing a dedicated layer that connects the charging session to the payment. This missing link blocks every automated receipt process – and affects every CPO processing ad-hoc payments through external terminals. We've seen it. We've solved it.
02 · Solution
One receipt server that connects both worlds.
Stackbox built a receipt server that integrates seamlessly into your existing infrastructure and automates every step from charging event to archived receipt. You don't have to touch a thing.
CPMS & PSP Integration
The receipt server connects to your Charge Point Management System as well as directly to the payment terminal or PSP. Two data sources, one connection.
Automatic Matching
A dedicated matching logic reliably links the charging event and payment transaction – even with timing offsets or rounding differences between systems.
Legally Compliant Receipt Generation
Based on the matched data, a tax-compliant digital receipt is generated automatically – complete, accurate, and instantly available.
Customer Delivery
The receipt is delivered via QR code at the terminal, web link, or email – with no manual follow-up, directly after the charging session ends.
Archiving & ERP Transfer
All receipts are archived in an audit-proof format and automatically transferred to the ERP or accounting system. GoBD-compliant, with zero additional effort on your end.
System Architecture
Matching · Generation · Archive
Integration
03 · Impact
What changes for you.
The Stackbox Receipt Server eliminates manual processes, reduces support overhead, and lays the foundation for scalable, compliant charge point operations. This isn't a future promise – it's live.
of all charging sessions automatically receive a complete receipt
manual reconciliation steps between CPMS and PSP
delivery directly after the charging session completes
audit-proof archiving of all receipts – out of the box
scales across charge point networks of any size without extra effort
seamless integration into existing CPMS and ERP systems
Until now, reconciling charging sessions with payments was manual work — error-prone, time-intensive, and impossible to scale. With the Stackbox Receipt Server, it runs fully automatically. Every charge, every receipt, every archive entry — without anyone touching it.
Stackbox · Receipt Server
Facing a similar integration challenge?
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