ZTABS builds ERP solutions for Berlin businesses — from custom Warenwirtschaft for Mittelstand manufacturers to modern Xentral implementations for D2C brands, SAP Business One integration for growing enterprises, and GoBD-compliant Finanzbuchhaltung automation that satisfies your Steuerberater and the Finanzamt.
Berlin businesses reach an ERP inflection point: the spreadsheets and disconnected tools that worked at EUR 1M revenue become: dangerous at EUR 5M and: impossible at EUR 10M. Orders fall through cracks between: the Webshop and the Lager. Invoicing lags because: Buchhaltung waits for: shipping confirmation that: lives in a different system. The Steuerberater sends angry emails because: the Umsatzsteuervoranmeldung data is: three weeks late and: full of errors. German ERP requirements differ fundamentally from other markets because: GoBD compliance (Grundsätze zur ordnungsmäßigen Führung und Aufbewahrung von Büchern, Aufzeichnungen und Unterlagen in elektronischer Form) mandates: specific requirements for: how business records are created, processed, and: archived — your ERP must: produce tamper-proof records, maintain complete Verfahrensdokumentation, and: enable Datenzugriff for tax audits; non-compliance: carries genuine legal risk), German Buchhaltung conventions (Kontenrahmen SKR03/SKR04, Umsatzsteuer handling with: Vorsteuerabzug, EU-Reverse-Charge, and: Innergemeinschaftliche Lieferung; your ERP must: handle German accounting as native, not: as a localization layer over Anglo-Saxon accounting), Datev integration (90% of German Steuerberater use: Datev for tax preparation; your ERP must: export to Datev format — without this: your accountant cannot process your books efficiently, costing you: hours of monthly reconciliation), and Handelsrecht requirements (German commercial code requiring: proper Inventur (stocktaking), Jahresabschluss preparation support, and: Aufbewahrungsfristen (retention periods) enforcement for business records).
Berlin ERP demand spans D2C and e-commerce, Mittelstand manufacturers, service companies, and tech startups. D2C and e-commerce: Berlin D2C ERP needs include: Warenwirtschaft (merchandise management connecting: Webshop (Shopify, WooCommerce) → Lager (warehouse) → Versand (shipping) → Buchhaltung (accounting) → Steuerberater (tax advisor); the D2C brand needing: automatic order processing, inventory sync, shipping label generation, invoice creation, and: Datev export — all without: manual data entry between systems), multichannel Bestandsführung (D2C brands selling through: eigener Shop + Amazon.de + Zalando + About You; inventory managed centrally to: prevent Überverkäufe (overselling); order routing: from each channel through: a unified fulfillment process), and Retouren management (German return rates: 40-60% in fashion e-commerce; the ERP: processing returns, updating Bestand, generating Gutschriften, and: tracking return reasons for: product quality improvement). Mittelstand manufacturers: Berlin Mittelstand ERP needs include: Produktionsplanung (production planning connecting: Kundenaufträge (customer orders) → Stücklisten (bills of materials) → Fertigungsaufträge (production orders) → Materialwirtschaft (materials management); the manufacturer needing: visibility into: what to produce, what materials are needed, and: when to order from suppliers), Qualitätsmanagement (quality management with: Prüfpläne (inspection plans), Prüflose (inspection lots), and: Qualitätszeugnisse (quality certificates); integrated into: the production workflow so that: quality checks happen at: defined process steps), and Kalkulation (job costing — tracking: material costs, labor hours, machine time, and: overhead per Auftrag (order); enabling: accurate Nachkalkulation (post-calculation) comparing: estimated vs. actual costs per order). Service companies: Berlin service company ERP needs include: Projektzeiterfassung (project time tracking: consultants and developers logging: hours per project, per Arbeitspaket, and: per Leistungsart; the time data feeding: into invoicing (Rechnungsstellung) and: profitability analysis per project), Abrechnung (billing: time-and-materials invoicing, Festpreisprojekte (fixed-price projects) with: milestone billing, and: Dauerschuldverhältnisse (recurring contracts) with: automatic Rechnungsstellung; the ERP generating: compliant German invoices with: all §14 UStG requirements), and Ressourcenplanung (resource planning: allocating: Berater (consultants) to projects based on: Verfügbarkeit (availability), skills, and: utilization targets; preventing: overbooking and: identifying: upcoming capacity gaps). Tech startups: Berlin tech startup ERP needs include: skalierbare Grundlage (scalable foundation: implementing ERP early — when the startup has: 20-50 employees and EUR 2-5M revenue — so that: processes are structured before: growth makes: retroactive implementation painful and expensive), Investor-Reporting (financial reporting meeting: investor expectations — monthly Gewinn- und Verlustrechnung (P&L), cash flow, and: KPIs delivered: promptly and accurately; the ERP: automating data collection that: would otherwise require: manual assembly from multiple sources), and Lohnbuchhaltung connection (payroll integration — connecting: the ERP to payroll services like Personio or DATEV Lohn; employee costs: automatically allocated to: the correct Kostenstellen (cost centers) and: projects).
Our Berlin ERP development covers Anforderungsanalyse (requirements analysis), implementation, and German compliance. Platform selection: (1) Matching the ERP to the business: Xentral (for D2C and e-commerce businesses: cloud-native, designed for: Shopify/Amazon multichannel, built-in Warenwirtschaft, shipping integration (DHL, DPD, GLS, Hermes), and: Datev export; fast implementation: 4-8 weeks; ideal for: EUR 1-20M revenue businesses with: product-based models), ERPNext (open-source ERP for: businesses wanting: flexibility and: no vendor lock-in; customizable for: manufacturing, service, and: trading businesses; self-hostable on: German infrastructure for: data sovereignty; requires: more implementation effort but: zero licensing cost), SAP Business One (for growing Mittelstand: comprehensive ERP covering: Finanzbuchhaltung, Materialwirtschaft, Produktion, and: Vertrieb; extensive Datev integration; suitable for: EUR 5-50M revenue businesses with: complex operations; higher licensing cost but: deep German business process support), and custom ERP (for businesses with: unique processes that: standard ERPs cannot accommodate; built on: Node.js or Python with: PostgreSQL; implementing: exactly the workflows the business needs: nothing more, nothing less; suitable when: the business process is: the competitive advantage and: must not be constrained by: standard ERP limitations). German compliance implementation: (1) Rechtskonformität built into the ERP: GoBD-Verfahrensdokumentation (documenting: every process in the ERP — how records are created, what controls exist, how changes are logged; the Verfahrensdokumentation: a legal requirement that: many German businesses neglect until: a tax audit reveals its absence; we create: the documentation as part of: implementation, not as: an afterthought), Datev-Schnittstelle (the connection to your Steuerberater: implementing DATEV-Format export — Buchungsstapel (posting batches) with: correct Kontenrahmen mapping (SKR03 or SKR04), Steuerkreise, and: Kostenstellen; testing: the export with your actual Steuerberater before: go-live to ensure: seamless monthly Buchhaltung), Rechnungsstellung (invoicing per §14 UStG: fortlaufende Rechnungsnummer (sequential invoice number), vollständige Angaben (complete information including: Steuernummer or USt-IdNr, Leistungszeitraum, and: aufgeschlüsselter Steuerbetrag), and: ZUGFeRD/XRechnung format for B2B and: government invoices), and Archivierung (GoBD-compliant document archiving: revisionssichere Ablage for: 10-year Aufbewahrungsfrist; every invoice, order, and: business record: archived in: tamper-proof storage with: Zeitstempel and: Unveränderbarkeitsnachweis). Data migration: (1) Safe transition from existing systems: Bestandsdaten (master data migration: Kunden (customers), Lieferanten (suppliers), Artikel (products), Kontenplan (chart of accounts), and: offene Posten (open items) — migrated from: existing systems (Excel, lexoffice, sevDesk, or: previous ERP) to the new ERP with: Plausibilitätsprüfung (plausibility checks) at every stage), Parallelbetrieb (parallel operation: running old and new systems simultaneously for: 2-4 weeks to: verify accuracy; Buchungen in both systems: compared for: Übereinstimmung (agreement); the parallel run: catching discrepancies before: the old system is decommissioned), and Schulung (training: users trained in: their specific ERP workflows — not: generic ERP training but: "how to process a Kundenauftrag from receipt to Rechnungsstellung" specific to: their role and business process).
D2C / E-Commerce / Home Goods
A Berlin D2C home goods brand (EUR 4.2M revenue, selling: sustainable kitchen and household products through: eigener Shopify-Shop + Amazon.de + Avocadostore) needed an ERP. The problems: (1) Bestandschaos: inventory tracked in: a Google Sheet updated manually by: the Lagerleiter (warehouse manager) once daily. Shopify, Amazon, and Avocadostore: each showing different stock levels. Result: 15-20 Überverkäufe (oversells) per month — products sold on one channel when: already out of stock because: the sheet was not yet updated. Each oversell: requiring a customer apology, refund processing, and: often a negative review. (2) Rechnungsdesaster: invoices created manually in: sevDesk based on: Shopify order exports. Amazon invoices: generated through Amazon's system but: not synced to sevDesk. The monthly Datev export for the Steuerberater: requiring 2 full days of: manual reconciliation between sevDesk, Amazon Seller Central, and: bank statements. Errors found by the Steuerberater: averaging 8-12 per month (mostly: missing invoices, incorrect Steuersatz, or: unmatched payments). The Steuerberater: increasingly frustrated, threatening to: increase fees for the additional reconciliation work. (3) Retourenabwicklung: returns (30% return rate for: online-only products) processed through: a notebook where the Lagermitarbeiter recorded: return date, reason, and: condition. Gutschriften (credit notes): created manually in sevDesk — often 5-7 days after the return arrived. Returned items: sometimes re-entered into inventory, sometimes not — no consistent process. (4) Versandkosten: shipping costs (DHL, DPD): tracked in: a separate spreadsheet. No visibility into: actual Versandkosten per Auftrag. Shipping cost per order: unknown — the brand: potentially losing money on: heavy orders where: shipping cost exceeded: the flat-rate shipping fee charged to customers.
We implemented Xentral ERP over 6 weeks: (1) Multichannel integration: Xentral connected to: Shopify (orders, products, inventory), Amazon.de (orders, inventory, invoicing), and: Avocadostore (orders, inventory). Real-time Bestandssynchronisation: when an item sold on any channel: Xentral immediately updated: inventory across all channels. The daily Google Sheet update: eliminated. Oversells: structurally prevented by: centralized real-time inventory management. (2) Automated Rechnungsstellung: every order — regardless of channel — automatically generating: a GoBD-compliant invoice in Xentral with: sequential Rechnungsnummer, correct Steuersatz (19% standard, 7% for: certain kitchen items classified as: Grundnahrungsmittelzubehör), complete §14 UStG information, and: ZUGFeRD format for B2B orders. The sevDesk manual invoicing: completely eliminated. Monthly Datev export: generated automatically from Xentral — Buchungsstapel with: correct SKR03 mapping, Steuerkreise, and: all Belegnummern traceable to: the original orders. The Steuerberater: receiving clean, complete data requiring: minimal reconciliation. (3) Retourenmanagement: returns processed through: Xentral's Retouren workflow — return received → Lagermitarbeiter scans: Retourenlabel → system displays: order details and: expected items → condition assessed (A-Ware/B-Ware/Entsorgung) → A-Ware: automatically re-entered into Bestand → Gutschrift: automatically generated and: sent to customer → B-Ware: routed to outlet sale or: social impact partner (the brand: donating B-Ware to: a Berlin social enterprise). The entire return: processed in 3 minutes (from: 15-20 minutes with the notebook system). (4) Versandoptimierung: Xentral's shipping module: calculating actual Versandkosten per order based on: weight, dimensions, and: destination. DHL and DPD rates: configured with: the brand's negotiated Geschäftskundenrabatte. For each order: the cheapest qualified shipping option: automatically selected. Shipping labels: generated directly from Xentral with: DHL Sendungsnummer tracked. The separate shipping spreadsheet: eliminated. (5) Warenwirtschaft: complete Artikelverwaltung — each product with: Einkaufspreis (purchase price), Verkaufspreis (selling price) per channel, Lagerbestand, Mindestbestand (reorder point), and: Lieferanteninformation (supplier details including: Lieferzeit). When inventory dropped below Mindestbestand: automatic Bestellvorschlag (purchase order suggestion) generated for: the Einkäufer to review and confirm. (6) Datev and Steuerberater: monthly Datev export configured and: tested with the brand's Steuerberater before go-live. Export includes: Buchungssätze (journal entries), Debitoren and Kreditoren (receivables and payables), and: bank transaction matching. The Steuerberater: importing directly into Datev without: manual data entry or: reconciliation.
Überverkäufe: from 15-20/month to: 0 (zero). Real-time Bestandssynchronisation: eliminating the structural cause of oversells. Customer experience: no more apology emails and: refunds for: sold-out products. Negative reviews from oversells: eliminated (previously: 5-8 per month attributable to: stock issues). Rechnungsstellung: from 2 full days monthly manual work to: 15 minutes (reviewing the automated Datev export). Steuerberater errors flagged: from 8-12/month to: 0-1/month (the 1: occasional edge cases in Steuersatz classification, not: missing or incorrect invoices). Steuerberater relationship: the accountant: commenting "endlich saubere Daten" (finally clean data) — and: reducing monthly billing by: EUR 200/month (previously charging: premium for reconciliation work). Retourenabwicklung: processing time per return: from 15-20 minutes to: 3 minutes. Gutschrift generation: from 5-7 days delay to: same-day. Return rate tracking: now possible with: structured reason data — the brand discovering: 45% of returns were: size/quantity related (leading to: improved product descriptions and: size guides that: reduced returns by 8% over 6 months). Versandkosten visibility: actual Versandkosten per Auftrag: now visible. Discovery: 12% of orders were: loss-making on shipping (heavy items with: flat-rate shipping fee). The brand: implementing weight-based shipping tiers that: eliminated: shipping-related losses while: remaining competitive. Annual impact: approximately EUR 35,000 in: recovered shipping margins. Lagerbestandsoptimierung: Mindestbestand alerts: preventing 3 Lieferengpässe (stockouts) in the first quarter (previously: 2-3 stockouts per month for popular items). Inventory carrying cost: reduced 18% through: better demand-driven ordering (the Bestellvorschlag system: preventing both: stockouts and: Überbestände). Implementation cost: EUR 28,000 (6-week Xentral implementation). Annual Xentral subscription: EUR 6,000/year. Annual value: Steuerberater savings (EUR 2,400) + shipping optimization (EUR 35,000) + inventory reduction (approximately EUR 15,000) + oversell elimination (estimated EUR 20,000 in: prevented negative reviews and: customer retention) + time savings (approximately EUR 25,000 in: staff time redirected from manual processes). ROI: investment recovered within: 4 months from: operational improvements.
Custom modules for finance, inventory, HR, CRM, procurement, and reporting.
Connect with accounting software, e-commerce, shipping, and third-party APIs.
Dashboards, reports, and exports to support business decisions.
Role-based permissions, approval workflows, and audit trails.
Architectures that scale with your organization and support multiple entities.
Berlin ERP development options include: SAP partners (EUR 50,000-200,000 for SAP Business One, comprehensive but: expensive for smaller businesses), Xentral partners (EUR 10,000-40,000, focused on e-commerce), ERPNext implementers (EUR 15,000-50,000, open-source flexibility), legacy ERP providers (Sage, Microsoft Dynamics — EUR 30,000-150,000), and custom development (EUR 40,000-200,000). ZTABS delivers Berlin-specific ERP with GoBD compliance, Datev integration, and German Buchhaltung expertise at mid-market pricing.
ERP development in Berlin ranges from EUR 10,000 for Xentral quick-start to EUR 200,000+ for custom enterprise ERP. D2C Xentral implementation (as in the case study): EUR 28,000. SAP Business One: EUR 50,000-120,000. ERPNext custom: EUR 25,000-60,000. Custom ERP: EUR 60,000-200,000. ERP assessment: EUR 3,000-5,000.
Verified reviews from real client engagements — sourced from our public testimonial archive and Clutch profile.
My experience is throughout positive. Communication, service, the short response times and the flawless execution of a challenging topic was absolutely great. ZTABS is definitely my first choice again.
Christian Neff
Bank Software Advisory · Bank Software Advisory
Fintech
Fantastic Agency! I couldn't fault them even if I tried. They always go above and beyond to meet your expectations and always produces quality work. Thank you ZTABS.
Stephanie Kal
CEO · Beauty Finder Australia
Marketplace
It has been great working with ZTABS. They bounce off the ideas along the way. Amazing Experience.
Joel Rowe
CEO · Drill Quoter
Marketplace
We don't just contract — we ship and operate our own software. 17 products in production.
Common questions about ERP development for Berlin businesses
Xentral: for D2C/e-commerce (EUR 1-20M revenue) wanting fast implementation with Shopify/Amazon integration. ERPNext: for businesses wanting open-source flexibility with no vendor lock-in. SAP Business One: for Mittelstand (EUR 5-50M) needing comprehensive manufacturing and finance. Custom: when your process is your competitive advantage and no standard ERP fits. We help you evaluate based on your specific processes, not vendor marketing.
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Web Design in Berlin, GermanyZTABS is a remote-first web design agency serving Berlin businesses — including ui/ux design, responsive design, custom interfaces. We work with FinTech, E-commerce, Mobility companies in Berlin, Germany via timezone-aligned engineers and async workflows; we do not have a local office, and we are explicit about that with every client.
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