cost

ERP decision guide

How much do ERP integrations cost?

Interface count matters, but criticality, documentation, source-system quality and exception handling usually matter more.

Editorial ERP project planning visual with modules, implementation timeline, budget allocation and target architecture.

An interface is not a standard unit of cost.

A simple documented API can be quick. A business-critical integration with a legacy system, batch processing, retries and controls can become a mini-program.

Design + development + security + testing + recovery + operations

  • Criticality changes the amount of engineering and testing required.
  • Good documentation reduces uncertainty.
  • Operating and monitoring costs continue after go-live.

The budget lines to make visible before you commit.

  1. Inventory
  2. Design
  3. Security
  4. Development
  5. Testing
  6. Operations

What changes the effort.

  • Source technology
  • Volume
  • Data-contract quality
  • Error handling
  • Number of partners

Questions to ask now, not after signature.

  1. Which interfaces would stop the business if they failed?
  2. Are formats and rules documented?
  3. Who owns each source system?
  4. How will errors be retried and reconciled?
  5. Which volumes and response times matter?

Frequently asked questions

Can ERP integration cost be estimated with a flat price per interface?

Only when scope, systems, volumes, business rules and error scenarios are sufficiently known.

Does middleware automatically reduce integration cost?

It can standardize patterns, but it also adds a platform that must be designed and operated.

Compare assumptions, not just totals.

PlanAxion can normalize scope, assumptions, responsibilities and risk before the budget becomes a commitment.

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