Seller-ERP Pro: Amazon Seller Financial ERP

Production-grade ERP for FBA/FBM with German SKR03, OSS VAT & ELSTER

Seller-ERP Pro unifies Amazon operations data with German double-entry bookkeeping and EU tax compliance. Built for multi-channel FBA/FBM sellers who need real profit visibility, automated fee posting, supplier invoice workflows, and accountant-ready exports — without spreadsheet chaos.

Python

Streamlit

Turso (LibSQL)

Amazon SP-API

Pandas

The Problem

Amazon sellers juggle SP-API orders, 21+ fee types, supplier invoices, Wise bank transfers, and German/EU tax rules across separate tools — with no single source of truth for true net profit or SKR03-compliant books.

The Solution

Delivered a modular Streamlit ERP on Turso with Amazon SP-API integration, TCO and P&L dashboards, 4-type inventory, P2P procurement, SKR03 general ledger, quarterly OSS reporting, and ELSTER XML plus DATEV CSV exports.

Key Features

TCO & Financial Dashboard

Real-time gross revenue, COGS, Amazon fees, expenses, and net profit with reimbursement tracking and trend charts.

Amazon SP-API Integration

Orders, settlements, FBA inventory, fees, returns, and VAT transactions synced from Seller Central.

Procurement & Expenses

Purchase orders, supplier invoices (including OCR workflows), Wise bank CSV import, and payment matching.

German & EU Compliance

SKR03 chart of accounts, GL journal, OSS VAT by EU country, Intrastat, ELSTER XML, and DATEV export.

Impact Metrics

16+

ERP modules

21

Amazon fee types

27

EU OSS countries

103

SKR03 accounts

Screenshots

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