ERP Development & Integration
FISTA Solutions works with the ERP you already run: building the custom modules it cannot cover, creating the integration layer that stops every system coupling to it directly, migrating data safely, and deploying AI agents over finance and operations data — with the ERP kept as the system of record.
- 150+
- projects delivered
- 50+
- companies served
- 99.9%
- verified uptime
- 47%
- efficiency gains
- 12+
- countries reached
What we build
What does ERP development and integration include?
ERP engagements cover custom modules for processes the ERP cannot model, an integration layer that decouples surrounding systems, data migration with reconciliation, reporting and analytics over ERP data, and agents that prepare work for finance and operations staff.
- 01
Custom modules
Processes your ERP cannot model, built alongside it with clean boundaries rather than deep customization.
Extend - 02
Integration layer
A stable API over the ERP so every other system stops coupling to its internal structures.
Integrate - 03
Data migration
Migration with mapping, validation, and reconciliation, proven on representative data before cutover.
Migrate - 04
Reporting and analytics
Warehouse-based reporting so analytical load never competes with transactional performance.
Reporting - 05
AI agents over ERP data
Invoice, reconciliation, and exception agents that prepare work for authorized humans to post.
AI
Requirements
Which requirements shape ERP development and integration?
ERP work is constrained by upgrade safety, transactional integrity, and the organizational weight of the system: heavy customization blocks upgrades, reporting load harms transactions, and data migration errors surface months later in the close.
| Requirement | Why it matters | How FISTA builds to it |
|---|---|---|
| Upgrade safety | Deep customization makes upgrades expensive or impossible. | Extensions built alongside the ERP with supported interfaces, keeping the core upgradeable. |
| Transactional integrity | ERP data drives financial reporting. | Idempotent integration, reconciliation jobs, and validation before anything posts into the ERP. |
| Reporting isolation | Analytics can degrade transactional performance. | Warehouse-based reporting with scheduled extraction rather than heavy queries against live tables. |
| Migration accuracy | Bad migration surfaces at the worst moment. | Mapping, validation, dry runs on representative data, and reconciliation reports signed off before cutover. |
| Process fidelity | Software must match how the business actually works. | Process mapping with the people doing the work, not only with the process documentation. |
Where AI fits
Where does AI fit in ERP development and integration?
AI fits around the ERP rather than inside it: extracting and coding invoices, investigating reconciliation exceptions, answering operational questions from ERP data with the query shown, and drafting reports — with humans authorizing every posting.
- 01
Invoice processing
Extraction, matching, and coding proposals for approval, with evidence attached to every suggestion.
- 02
Exception investigation
Reconciliation and posting exceptions investigated with proposed resolutions for review.
- 03
Operational question answering
Questions answered from ERP data through governed definitions with the query shown.
- 04
Report drafting
Recurring operational and financial reports assembled with figures traceable to records.
Cost and timeline
How much does ERP development and integration cost, and how long does it take?
Cost is driven by integration depth, customization scope, and migration complexity; timeline by ERP vendor access and finance review cycles. FISTA does not quote blind: the scoping call returns an approach recommendation and a phased estimate.
The cheapest ERP project is usually the one that does not customize the ERP. FISTA builds alongside it wherever possible, which keeps upgrades viable and avoids the vendor-lock costs that deep customization creates.
Migration is priced separately and proven on representative data before a cutover date is agreed, because migration errors surface in month-end close rather than in testing.
Send the scope you have, even if it is a paragraph. You get a written brief, an architecture sketch, and a phased estimate before any commitment.
Get a scoped quoteDelivery
How does FISTA deliver custom software?
FISTA delivers custom software in four phases: a discovery sprint that turns goals into a specification with acceptance criteria, an architecture and data design with integration contracts, two-week builds with automated tests and weekly demos, and a verified release with infrastructure-as-code, runbooks, and monitoring.
- 1
Discover and specify
Workshops, process mapping, and system inventory produce a specification with acceptance criteria and a phased plan.
OutputSpecification, estimate, roadmap
- 2
Architect
Data model, service boundaries, API contracts, security, and infrastructure decisions recorded with trade-offs.
OutputArchitecture decision records
- 3
Build and demo
Two-week sprints with unit, integration, and contract tests; a demo on your environment every week.
OutputWorking increments in your repo
- 4
Verify and release
Performance and security testing against the spec, infrastructure-as-code, runbooks, dashboards, and handover or managed operations.
OutputVerified release with SLOs
Why FISTA
Why choose FISTA Solutions for ERP development and integration?
FISTA extends and integrates ERPs rather than trapping you in customization, keeps reporting off the transactional system, and proves migrations before cutover. Work is contracted through a US entity with full IP assignment.
ERP specifics
- Extensions are built alongside the ERP through supported interfaces, so upgrades remain possible.
- An integration layer stops every surrounding system coupling to ERP internals.
- Reporting runs from a warehouse, so analytics never degrade transactional performance.
- Migrations are validated and reconciled on representative data before any cutover date is agreed.
How FISTA engineers
- Spec-Driven Development: every deliverable starts as a written specification with acceptance criteria, so scope is testable before it is built.
- AI-native delivery: engineers direct coding agents under review gates and evaluation harnesses, compressing build time without loosening verification.
- Official Anthropic partner, with production experience across Claude, OpenAI, Google, and open-weight models, chosen per workload rather than by default.
- One accountable delivery lead, weekly demos on your environment, and code in your repositories from week one.
What you get as a client
- 150+ projects delivered for 50+ companies across 12+ countries since 2017, with 99.9% verified uptime on systems we operate.
- A US entity (FISTA Solutions Inc., Wilmington, Delaware) for contracting, invoicing, and IP assignment, with an engineering center in Faisalabad, Pakistan for cost-efficient senior capacity.
- US business-hours overlap for standups and reviews; written decision logs so nothing depends on a meeting you missed.
- Flexible engagement: fixed-scope build, embedded forward deployed engineers, or a dedicated team that you can scale month to month.
Clear answers
What buyers ask before a custom build.
Straightforward guidance for evaluating scope, fit, and the next step.
01Should we customize our ERP or build alongside it?
Build alongside wherever possible. Deep customization makes upgrades expensive and locks you into a version. FISTA uses supported extension points and an integration layer so the core stays upgradeable.
02Can you build a custom ERP?
Only where no product fits the operating model, which is rare and expensive. FISTA will say so plainly, because replacing an ERP with a bespoke one is a multi-year commitment most organizations should avoid.
03Can you migrate data into a new ERP?
Yes, with mapping, validation, dry runs on representative data, and reconciliation reports signed off before cutover, since migration errors typically surface during month-end rather than in testing.
04Can AI agents work with ERP data?
Yes — invoice processing, reconciliation exceptions, and operational question answering. Agents prepare and propose; authorized humans post, and segregation of duties is respected in tool permissions.
05How long does ERP integration take?
A focused integration layer or module typically takes a few months, with ERP vendor access and finance review cycles as the usual gating items.
Scoped in writing before you commit
Work with the ERP, not against it.
Bring the process the ERP cannot handle. The scoping call returns an approach recommendation, an integration design, and an estimate.