System Integration Costs: ERP, CRM, APIs and Middleware
What system integration projects cost: ERP, CRM, APIs and middleware. Transparent ranges.
System Integration Costs – Connecting Your Systems
System integration: typical costs
Integrating two or more systems (e.g. ERP, CRM, e-commerce, shipping) depends on the number of systems, data volume, transformation logic and whether standard APIs exist. Simple point-to-point integrations start from €10,000 excl. VAT; multi-system landscapes with middleware and monitoring can reach €50,000–200,000+ excl. VAT. We analyze your landscape and provide a scoped offer after a workshop.
What drives system integration costs?
The main cost drivers are the number of systems and interfaces, the complexity of data mapping and transformation, and whether you need real-time sync or batch processing. Standard APIs (e.g. REST, SOAP) reduce effort; legacy or proprietary systems often require custom adapters. Middleware (e.g. message queues, ETL tools) adds capability but also cost and should be chosen to match your scale and reliability requirements. We recommend a short discovery workshop to map your systems, data flows and goals – then we provide a fixed or capped quote so you can plan with confidence.
Ongoing costs include monitoring, error handling and changes when source or target systems are updated. We design integrations to be maintainable and document data flows and dependencies so your team or our support can operate them long term. Use the calculator below to estimate integration effort; for a tailored quote for your ERP, CRM or e-commerce integration get in touch – we outline scope and typical cost ranges without obligation.
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System Integration Costs
Costs & Quote
How much does system integration cost?
Simple point-to-point integrations start from €10,000 excl. VAT; multi-system landscapes with middleware and monitoring can reach €50,000–200,000+ excl. VAT. We analyze your landscape and provide a scoped offer after a workshop.
What drives system integration costs?
Main factors: number of systems and interfaces, complexity of data mapping and transformation, and whether you need real-time sync or batch processing. Standard APIs reduce effort; legacy systems often require custom adapters.
What about ongoing costs?
Ongoing costs include monitoring, error handling and changes when source or target systems are updated. We design integrations to be maintainable and document data flows so they can be operated long term.
How do we get a fixed quote?
We recommend a short discovery workshop to map your systems, data flows and goals – then we provide a fixed or capped quote so you can plan with confidence.
What does your system integration cost?
Calculate cost and savings potential of your integration
How many systems need to be connected?
Typical pricing models (overview)
| Model | When it fits | Budget & flexibility | Typical risks |
|---|---|---|---|
| Fixed price (fixed scope) | Clearly defined scope, stable requirements, repeatable delivery. | Predictable total cost; little room for change without a change order. | Scope creep leads to change orders or quality trade-offs. |
| Time & Material | Discovery, legacy, evolving requirements, or close collaboration. | Maximum flexibility; budget transparent via hourly or daily rates. | Without prioritisation, effort can grow—backlog and reviews matter. |
| Retainer / maintenance package | Ongoing operations, updates, small features, and support. | Agreed capacity per month; predictable follow-on cost. | Large changes may still need a separate estimate. |
| Hybrid (milestone + T&M) | MVP or phased releases with clear go-lives, then iterate. | Core delivery fixed price; extensions on a time-and-materials basis. | Define contractually what is in scope vs. extra work. |
Calculators on this page provide indicative ranges; we choose the right model with you based on risk, scope, and planning horizon.
Costs & next steps
System integration costs: ERP, CRM, APIs and middleware – what drives integration budgets end to end.
The ranges shown are indicative. For a binding quote we discuss scope, priorities and funding options in a free intro call. Many digitalization projects qualify for grants – try our funding calculator.
Browse all cost calculators, explore services and typical solutions. Questions about System Integration? Contact us.