Engineering & Platforms
Third-Party System Integration
Integration with systems outside your organisation, such as banks, logistics partners, suppliers, distributors, insurers and government portals, using APIs, EDI, host-to-host file exchange and partner onboarding processes.
Capability overview
What third-party system integration involves
Integrating with external partners is harder than internal integration because you control only one side. Banks require specific file formats and encryption for payments, large retailers insist on EDI for purchase orders and invoices, logistics partners each publish different APIs and suppliers range from sophisticated systems to spreadsheets sent by email.
We build partner integrations using bank host-to-host connections and banking APIs, EDI standards such as ANSI X12 and EDIFACT through EDI providers, secure SFTP with PGP encryption, partner APIs and webhooks. A partner onboarding process with test cases and certification steps makes adding the next partner faster than the last.

What is included
Partner integration types
Banking integration
Payment files, bank statements and account validation exchanged with banks through host-to-host channels or corporate banking APIs.
EDI with trading partners
Purchase orders, advance shipping notices and invoices exchanged with retailers and manufacturers in required EDI formats.
Logistics partners
Booking, labels, tracking and proof of delivery integrated with couriers, freight forwarders and warehouse providers.
Supplier and distributor data exchange
Catalogues, stock, prices, orders and claims exchanged through APIs, portals or structured files.
Secure file exchange
Managed file transfer with encryption, integrity checks, acknowledgements and retention.
How we work
How we deliver third-party system integration
Partner requirements
Specifications, security requirements, test environments and certification steps collected from each partner.
Mapping and design
Partner formats mapped to internal data, including code lists and validation rules.
Build and partner testing
Integration built and test transactions exchanged with the partner until certification is complete.
Production onboarding
Credentials, certificates and endpoints switched to production with monitored first transactions.
Partner operations
Acknowledgements, rejections and missing files monitored with escalation to partner contacts.
Related capabilities
Related capabilities in Enterprise Platforms & Integration
Legacy System Integration
Connecting legacy systems that lack modern APIs, such as old ERPs, mainframes, AS/400 applications and in-house databases, to newer applications using database access, change data capture, messaging, file exchange or automation.
Enterprise Data Integration
Keeping operational master and reference data, such as customers, products, suppliers, locations and employees, consistent across ERP, CRM, e-commerce and other business systems through synchronisation and matching rules.
Enterprise Content Management
Document and records management for the organisation, covering capture, classification, version control, approvals, retention, search, e-signatures and secure sharing across SharePoint, M-Files, OpenText or Alfresco.
Custom Enterprise Platforms
Internal platforms that provide shared foundations, such as identity, workflow, notifications, documents, reporting and integration, on which several business applications are built faster and more consistently.
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Questions & answers
Questions about Third-Party System Integration
Cannot find what you need? Our team responds to technical and commercial questions within one business day.
Ask a questionFor most organisations, yes. EDI value-added networks and cloud EDI providers handle communication protocols and partner connectivity, while we map documents to your ERP.
Through encryption such as PGP, digital signatures, secure transport, IP restrictions and approval controls in the ERP before files are released to the bank.
Technical work can take a few weeks, but partner testing schedules often set the timeline. Reusable mappings shorten onboarding for partners using the same standards.
Each partner integration is quoted based on format, protocol, certification effort and transaction types, with reusable components reducing cost for subsequent partners.
Next step
Discuss third-party system integration with Acmez
Share what you need to change, build, integrate or support. We will map the practical next step.