ERP for Events Organisers — software for Veranstalter, congresses and trade fairs
An events organiser runs a portfolio of one-off projects with no two of them ever quite the same: a 200-attendee corporate offsite, a 2,000-attendee industry congress, a 50,000-visitor consumer fair. An ERP for events organisers therefore has to behave like a project-accounting system first and a CRM second, with deep support for supplier-network coordination (caterers, audio-visual, security, stand-builders), ticketing and registration data, multi-event resource allocation, GEMA reporting for music royalties, and GDPR-compliant attendee data handling. The mistake most organisers make at scale is keeping the project plan in Excel, the supplier contracts in a shared drive, the ticketing data in Eventbrite and the financials in DATEV — an ERP that pulls those four corners together is the difference between a 10 percent and a 25 percent operating margin.
Requirements
The defining requirement is project-based accounting at event granularity. Every event is a profit-and-loss centre with its own budget, supplier commitments, attendee revenue, sponsor revenue and overhead allocation. The ERP has to support pre-event budgeting, in-event cost tracking against forecast, and post-event reconciliation with variance analysis. Multi-currency matters whenever events run internationally or attendees pay in foreign currency.
The second requirement is the supplier-network side. A 1,000-attendee congress involves 30–60 suppliers from venue, catering, AV, security, signage, transport, hotel-room block management and speaker fees. Each supplier needs a contract, a service-level definition, a commitment booked against the event budget and an invoice match. The third is integration with the ticketing and registration stack: Eventbrite, Ticketmaster, XING Events, Cvent and increasingly custom registration platforms feed attendee data, payment data and waitlist movements that have to land in the ERP as both revenue and as personally identifiable information under GDPR.
Mandatory functions
Mandatory functions for an events-organiser ERP: project accounting with per-event P&L, supplier-contract management with milestone-based commitments, ticketing/CRM integration via standard connectors or REST API, GDPR-conformant attendee-data handling with explicit consent tracking and retention rules, GEMA reporting (music-royalty calculations by event size and music duration) and integrated DATEV export for German financial accounting.
On the operational side: resource calendaring across overlapping events (the same lighting technician cannot work two events simultaneously), travel-and-accommodation booking integration for speakers and staff, sponsor-package management with deliverable tracking (logo placement, panel mentions, lounge access), and post-event surveys feeding back into a contact-centric CRM. For larger fairs and congresses, exhibitor management with stand-allocation, exhibitor invoicing and badge-system integration is a separate functional area that not every generic ERP handles well.
Vendor landscape
The vendor landscape splits between vertical event-management platforms and generic ERPs with event add-ons. Vertical specialists include Ungerboeck (now Momentus Technologies), the long-standing market leader for venues, fairs and congress organisers, with deep exhibitor and venue-management depth; Eventoplan and Eventory for German-speaking Mid-Market organisers; and Cvent for enterprise corporate-event management. These platforms cover ticketing, registration, exhibitor management and project budgeting well but typically need a downstream accounting system for full financial close.
On the generic-ERP side, Sage 100 with the event add-on (sevDesk Events and similar) covers the SMB end, while Microsoft Dynamics 365 Business Central with project-accounting add-ons (Continia Project Manager, Cosmo Consult) is a credible mid-market option. The pragmatic pattern at €5–30 mEUR turnover is a vertical event platform as front-of-house plus a generic ERP for finance, supplier management and DATEV.
Trends and outlook
Three trends are reshaping the ERP requirement set. First, hybrid and virtual events — permanent residue from the 2020–2022 disruption — require revenue and attendance tracking across physical and digital channels with different cost structures and different GEMA implications. Second, sustainability reporting (CO2 per attendee, supplier ESG data) is becoming a sponsor expectation rather than a nice-to-have, which forces a tighter integration between supplier master data and event-level carbon accounting.
Third, GDPR enforcement around attendee data has tightened, and the upcoming EU AI Act adds rules around AI-driven matchmaking and recommendation features that many event platforms have introduced. Vendors that document their AI use cases and consent handling reduce the legal exposure for the organiser.
Related Topics
Frequently Asked Questions
Do we need a vertical event platform, or is a generic ERP enough?
For corporate-event teams running fewer than 20 events per year with limited exhibitor management: a generic ERP plus a ticketing tool is usually enough. For fair organisers, congress organisers and venue operators above roughly 50 events per year or 5,000+ attendees per event: the vertical platforms (Ungerboeck/Momentus, Eventoplan) deliver enough exhibitor and venue depth to justify their cost. The hybrid pattern (vertical for operations, generic ERP for finance) is the most common at mid-scale.
How is GEMA reporting handled in event ERPs?
GEMA royalties depend on event size, ticket price, music duration and music type (live, recorded, background). The better vertical platforms ship pre-built GEMA tariff tables (M-U, M-V, U-V, etc.) and produce the standard GEMA monthly or per-event report directly. Generic ERPs typically leave GEMA reporting as a manual Excel calculation, which is fine for small organisers but becomes error-prone above ~50 events per year.
What does GDPR mean for attendee data in practice?
Explicit, granular consent at registration, a documented retention period (typically 24–36 months for event organisers), the ability to honour data-subject access and erasure requests within 30 days, and a record of processing activities (Verzeichnis von Verarbeitungstätigkeiten). ERPs that integrate consent flags into the attendee master record — rather than keeping consent in a separate marketing tool — reduce the audit and breach-notification risk substantially.