ERP-Integrated B2B Dealer Portals: SAP, Logo & Custom Architecture
A B2B dealer ordering portal may look like a catalog and login screen, but the difficult decisions usually sit behind it: customer-specific prices, stock availability, credit checks, permissions and order acknowledgement. Whether to configure SaaS, add a custom integration layer or build the portal depends on those real interfaces.
Start with the source of truth
Document which system owns each business object: dealer account, payment terms, negotiated prices, item variants, stock allocations, orders, invoices and returns. Decide whether the portal can cache values, how stale they may be and what happens when the ERP is unreachable.
An order acceptance message should mean something precise. Does the portal merely receive an order request, or has the ERP accepted and assigned an order number? Write this distinction into the buyer journey before development.
What to verify
- Business objects and their owning systems
- Maximum tolerable stale stock and price values
- Meaning of submitted versus ERP-confirmed orders
SAP, Logo and Mikro ERP integration: verify compatibility first
For a B2B ordering system using SAP, Logo or Mikro, the ERP brand alone is insufficient for an integration estimate. API availability, licensing, version, installed modules, customization and network access all affect feasibility. Mihenk does not claim a prebuilt certified connector or partnership with these vendors.
Request a sandbox or representative test system, read/write operation documentation, authentication details, rate limits and sample payloads. If the available interface cannot perform required operations safely, make that a design input before you choose portal software.
What to verify
- Exact ERP product, version and enabled modules
- Documented read and write API permissions
- Sandbox availability and integration ownership
Design for failure, duplication and reconciliation
Network timeouts do not always mean an ERP operation failed. Submitting the same purchase order twice without an idempotency mechanism can create duplicate downstream orders. Define stable request identifiers, retry boundaries, dead-letter review and human reconciliation.
For stock and pricing, state how conflicts are displayed. A portal that silently shows outdated stock or a wrong contractual price creates an operational problem that a polished interface cannot fix.
What to verify
- Idempotency and duplicate-order behavior
- Retry, queue and reconciliation process
- Customer-facing explanation for delayed confirmations
Treat permissions as part of the process
A multi-branch distributor may require a buyer, approver and account administrator to see different prices, credit limits and order histories. Specify who can approve purchases across branches, whether headquarters can view subsidiaries and how invitations or deactivations affect permissions.
Test cross-tenant isolation and change logs using real acceptance cases. Example synthetic tests can demonstrate code behavior, but cannot certify a production ERP or a vendor's security posture.
What to verify
- Dealer hierarchy and approval rules
- Cross-account isolation test cases
- Audit trail, retention and access review
Choose the architecture after testing interfaces
A hosted B2B platform is attractive when it has documented support for the required workflows and an ERP connector that survives acceptance testing. A hybrid architecture may keep the catalog and account interface in SaaS while a custom service handles ERP-specific workflows. Custom software becomes more plausible when standard platforms cannot represent the required permissions or operational rules.
Do not choose on a vendor slide. Run a small order-placement and price-lookup test in the actual environment, identify maintenance responsibilities and compare the complete operational cost before procurement.
What to verify
- One end-to-end order and confirmation test
- One customer-specific pricing and permissions test
- Ownership matrix for incidents and changes
Questions before procurement
Can a SaaS dealer portal connect to SAP, Logo or Mikro?
Possibly, but feasibility depends on the specific ERP version, modules, API licensing, permissions and the SaaS vendor's connector. Verify documented operations and test the exact integration; do not infer compatibility from the ERP brand alone.
When should a B2B order portal use a hybrid architecture?
Hybrid may fit when standard catalog and account features work in SaaS but ERP synchronization or approval rules require specialized logic. Assess data ownership, failures, operational cost and maintenance responsibilities before committing.