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Sage ERP API Integration for a Custom App in Dublin: Cost, Timeline and Maintenance in 2026

Mohamed Bah·Fondateur, Kolonell
October 15, 2026
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Sage ERP API Integration for a Custom App in Dublin: Cost, Timeline and Maintenance in 2026

Sage ERP API Integration for a Custom App in Dublin: Cost, Timeline and Maintenance in 2026

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The verdict in three sentences

A 120-employee company that re-keys its orders into Sage 200 typically loses 1,500 hours a year and 1 to 3 % of lines to errors. An API connector between your business application and Sage costs 10,000 to 35,000 EUR in Dublin, ships in 3 to 8 weeks and needs 10 to 20 % yearly maintenance, mainly at each Sage release. If the business application itself still has to be built, Kolonell prices the whole project as a medium application: 4,000,000 to 7,000,000 FCFA (6,100 to 10,670 EUR).

Four ways to connect an application to Sage 200

Sage 200 Professional exposes a REST API, while older on-premise installations often rely on the SDK or database access. Each route differs widely in cost and robustness. Here are 2026 benchmarks.

MethodPrincipleIndicative market costTimelineReal timeMain limitation
Scheduled file importThe app drops a file, Sage imports it every hour10,000 to 15,000 EUR3 to 4 weeksNo, 15 to 60 min lagManual handling of rejects
Sage 200 REST APIThe connector writes through Sage's official API18,000 to 35,000 EUR5 to 8 weeksYesAPI limits and authentication to manage
SQL read plus SDK writeDirect database read, controlled write15,000 to 28,000 EUR4 to 7 weeksYesMust track schema changes
Integration platform (iPaaS)Prebuilt Sage connector, configured flows6,000 to 15,000 EUR setup3 to 6 weeksNear real timeSubscription of 4,000 to 15,000 EUR a year
Partner add-onModule sold for a specific use case4,000 to 10,000 EUR plus licence2 to 4 weeksDepends on moduleHard to adapt to your rules

For a company processing several hundred orders a week, the official API offers the best balance: entries respect Sage's controls, which reassures your auditors.

What each data flow costs

A connector's budget depends on the number of flows and their direction. A read-only flow costs two to three times less than a flow that writes into Sage. Here is a typical breakdown.

FlowDirectionIndicative costRe-keying hours avoided per year
Customers and trading termsSage to app2,000 to 4,500 EUR100 to 150 h
Products, price lists and stockSage to app3,000 to 6,000 EUR150 to 250 h
Customer orders into sales ordersApp to Sage4,500 to 10,000 EUR800 to 1,000 h
Invoices and paymentsSage to app3,000 to 6,000 EUR150 to 200 h
Exchange log and error alertsInternal2,000 to 5,000 EURPrevents silent failures
Testing and documentationProject1,500 to 3,500 EUREssential

Then budget 10 to 20 % of the initial cost per year for maintenance. At Kolonell, this takes the form of a monthly plan at 35,000, 75,000 or 120,000 FCFA depending on the service level, including release monitoring.

What to lock down before signing

Three issues derail integration projects. The first is data quality: duplicate customers, inconsistent product codes, duplicated accounts. Two to five days of clean-up before development saves weeks of fixes. The second is the precedence rule: when a price differs between the app and Sage, which one wins? It must be written down. The third is monitoring: every exchange must be logged, and an alert must reach the finance team as soon as an order is rejected. Without it, the team discovers gaps at month-end close.

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Illustrative example: Ciara, Financial Controller of a 120-employee manufacturer in Dublin, has 18,000 orders a year re-keyed into Sage 200 at 5 minutes each, i.e. 1,500 hours. At 34 EUR an hour, that is 51,000 EUR a year, before counting 2 % of errors to fix. An API connector at 25,000 EUR, with 15 % maintenance, i.e. 3,750 EUR a year, pays back in 25,000 / (51,000 - 3,750) x 12, i.e. about 6 months.

FAQ

How much does a Sage 200 API integration cost in 2026?

In Dublin, 10,000 to 35,000 EUR depending on the method and number of flows. If the business application is built at the same time, Kolonell prices it as a medium application, 4,000,000 to 7,000,000 FCFA (6,100 to 10,670 EUR).

How long does the project take?

Expect 3 to 4 weeks for a file import and 5 to 8 weeks for an API connector. Acceptance testing with the finance team adds 1 to 2 weeks.

What happens when Sage is upgraded?

The connector must be retested at each release, usually once or twice a year. That is why maintenance runs at 10 to 20 % of the initial cost.

Can an on-premise Sage 200 connect to a cloud app?

Yes, through a small agent installed next to the Sage server that talks to the cloud app over a secure API. The extra cost is 3,000 to 7,000 EUR.

Should we move to a cloud ERP to simplify integration?

Not necessarily. A migration often costs 30,000 EUR or more, while a well-built connector extends Sage 200 for several years.

Let's scope your project. List the flows you want to automate and your Sage version: we price the connector or the full business application, with a 3 to 8 week timeline. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.

Tags:#Sage integration#ERP API#custom business app Dublin#ERP connector#re-keying#integration cost
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Mohamed Bah

Fondateur, Kolonell

Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.