Häufig gestellte Fragen
Do I need an ERP, or is a project tool enough?
Pure project and task tools such as Asana, Trello or Jira cover planning and collaboration, but not end-to-end accounting, invoicing and per-project margin analysis. As soon as several parallel billing models (time and material, fixed price, retainer) and audit-proof invoicing runs come together, a break quickly emerges in the tool landscape between time tracking and invoicing. An integrated ERP or a professional services automation (PSA) solution combines resource planning, time recording, billing and financial accounting in a single data set. Whether the switch pays off depends on headcount, project complexity and the existing system landscape and should be examined case by case with a consultant experienced in the industry.
How does an ERP for service providers differ from standard merchandise management?
Classic ERP and merchandise management systems were designed for the flow of physical goods: purchasing, warehousing, production and shipping are at the centre. For service providers, by contrast, the billable working time of employees is the actual product, which is why resource and utilisation management, skill profiles and project-related margins take priority. Specialised service provider systems or PSA solutions therefore natively map metrics such as utilisation rate, billable hours and project result, while a generic merchandise management module often delivers this logic only to a limited extent. For service-oriented companies, the depth of the project and billing logic therefore usually matters more than the warehouse and production functions.
How large is the typical implementation effort and what costs arise?
For mid-sized service providers with around 30 to 80 employees, project duration is in practice around four to nine months, with simple cloud implementations without customising at the lower end and heavily individualised projects at the upper end. Pure software licences usually make up only a smaller part of total costs; various market sources put the licence share at roughly 15 to 35 percent, while the larger remainder goes to implementation, customising, data migration and training. Cloud models lower the initial investment but shift costs permanently into ongoing monthly operating expenses per user. The specific amounts vary greatly with vendor, functional scope and degree of individualisation, which is why a reliable estimate is only possible on the basis of a specific requirements specification.
Cloud or on-premise for service providers?
Since consulting and service teams frequently work mobile, remotely or on-site at the customer, a cloud solution with web- and app-based access to time tracking and project data is a particularly natural fit in this industry. A large share of new mid-market projects now starts cloud-first, while on-premise systems already in production often continue running in parallel for another five to ten years. On-premise or hybrid architectures remain sensible where particular requirements for data sovereignty, integration with in-house systems or industry-specific compliance exist. The decision should be made based on IT strategy, data protection requirements and the desired scalability.
Which KPIs should an ERP for service providers deliver?
In the services business, utilisation, billable hours and project margin are above all the central management metrics. The billable utilisation rate is calculated as billable hours divided by the total available hours; in practice, target values in the range of about 70 to 85 percent are frequently cited for delivery roles, varying by function and seniority level. A suitable system should report these metrics as close to real time as possible per project, team and employee and support forecasts by project phase. This makes it possible to identify idle time, unprofitable projects and bottlenecks in resource planning early.
Does an ERP for service providers support the e-invoicing mandate?
Since 1 January 2025, electronic invoicing has taken precedence in domestic B2B transactions in Germany, with receiving e-invoices already mandatory and staggered transition periods applying to sending them. From 2027, companies with a prior-year turnover above 800,000 euros must send e-invoices, and from 2028 the sending obligation applies to all domestic B2B companies. Permissible formats are invoices conforming to the European standard EN 16931, which include the widespread formats XRechnung and ZUGFeRD (from version 2.0.1). Modern ERP and service provider systems should be able to generate and receive these formats as well as the XRechnung required for public sector clients (B2G); the specific implementation should be agreed with the vendor and tax advisor before selection.