System Integration That Connects the Software You Already Run
We connect the systems you already run, such as accounting, CRM, payments and internal databases, so records move automatically instead of being re-typed by staff.
Most businesses do not have a single system problem. They have five systems that each hold a piece of the truth: an accounting package, a CRM, an inventory tool, a payment provider and at least one spreadsheet that somebody guards. The cost appears as duplicated data entry, month-end reconciliation that takes days, and reports that disagree with each other. Replacing everything is usually the wrong answer, because the systems that have run your business for years still work and your staff already know them.
System integration is the work of making those systems talk to each other reliably and in a way you can monitor. That means mapping the data, deciding which system is the source of truth for each field, and building the API or middleware layer that carries changes between them. It also means handling the unglamorous cases: duplicate records, partial failures, rate limits, and what happens when one system is down for two hours. For Nigerian clients we frequently connect payment providers such as Paystack and Flutterwave to accounting and ERP systems, and we design for periods when connectivity or provider availability cannot be taken for granted. Where an older system has no usable API, we look at file exports, database views or a scheduled job before suggesting a full replacement.
What you actually receive
- A written data map showing which system owns each field and how records are matched across systems
- An integration service or middleware layer with its source code in your repository
- Connectors for the systems in scope, through REST APIs, webhooks, database views or scheduled file exchange
- A historical data migration with a reconciliation report showing what moved and what did not
- Retry, queueing and error handling so a failed sync does not silently lose a record
- Monitoring and alerting that tells you when a sync fails, rather than waiting for a customer to complain
- Integration documentation covering endpoints, authentication, rate limits and escalation contacts
- A cutover and rollback plan for the day the new data flow becomes the source of truth
This is the right service if
- Your staff re-type the same order, invoice or customer record into two or three systems
- Two systems hold conflicting versions of the truth and month-end reconciliation is manual
- You are adopting a new tool and it has to exchange data with software you already run
- A provider or partner needs a documented API to send you data or receive it
- An older in-house system has no modern API and replacement is not on the table
How this project runs
- 1
Discover
We inventory every system in scope, trace where each field is created and changed, and agree which system becomes the source of truth for what.
- 2
Design
We specify the integration contract: endpoints, field mappings, matching rules, sync frequency, and the behaviour expected when a call fails.
- 3
Develop
Connectors are built and tested against sandbox or staging data first, then historical records are replayed and reconciled before anything touches production.
- 4
Deploy
We cut over in stages with the old manual process still available, monitor the first full cycles, and only then retire the workaround.
Questions people ask first
How long does an integration project take?
Two connected systems with clean APIs usually take 6 to 12 weeks, including migration and reconciliation. Projects stretch when an older system has no API, when records need manual matching, or when several departments must agree on data definitions. We scope the first connection on its own so you see working data flows early instead of waiting for everything at once.
What drives the cost?
The number of systems, the quality of their APIs, and how messy the historical data is. Systems with documented APIs and stable identifiers are straightforward. Systems that only export CSV files, or that allow duplicate customer records, take longer. As with every quote we give, we will tell you honestly if your budget does not match your scope rather than start work we cannot finish properly.
Do we have to replace our existing software?
Usually not, and we will say so if replacement is genuinely the better option. Integration is normally cheaper and lower risk than a migration, especially when staff are trained on the current tools and the historical records matter. If the old system is holding you back in a way integration cannot fix, we will explain why and what a phased replacement would involve.
Who owns the integration code?
You do, along with the documentation and the credentials. Integrations are often built as a service inside your own cloud account, so your data never rests in our infrastructure. Ownership transfers to you on final payment, and we will help your team or another vendor take it over.
What happens if a sync fails at 2am?
Failed jobs retry automatically with backoff, and anything that cannot be reconciled is parked in a queue you can inspect rather than discarded. Alerts go to the people you nominate, and every run is logged so you can see what moved and when. Every project includes a bug fix window after cutover, with its length written into the agreement, and after that you can move to a monthly support agreement or run it with your own team.