# B2B Customer Portal Build vs Buy: SaaS, Custom or Hybrid

> B2B customer portal build vs buy: compare SaaS, custom and hybrid ERP architecture in six questions. Download a free decision PDF without signing up.

Canonical: https://mihenkteknoloji.com/tools/customer-portal-decision

Last updated: 2026-10-26

Build or buy a B2B customer portal? Compare standard SaaS, a hybrid ERP integration and custom development in six questions. Get a three-part decision PDF without signup. Your answers stay private by default.

## How the build vs buy decision tool works

Answer six practical questions about workflow complexity, ERP integration, deadline, implementation budget flexibility, internal technical support and data-control requirements. The decision tool compares SaaS, hybrid and custom architectures.

The interactive tool calculates directional heuristic fit points. They are uncalibrated, not probabilities, market prices, vendor rankings or procurement advice. If the leading options are close, the result is undetermined.

Your responses stay in your browser by default. The free PDF report is generated locally and has three sections: Executive Summary, Technical Assessment and Implementation Roadmap.

Saving a private report on Mihenk is optional and requires an explicit checkbox and button action, separate from analytics and contact consent. A saved copy is retained for up to 90 days, and this tool has no public report retrieval service.

Contacting Mihenk is a separate, optional action. The contact form does not receive your decision answers.

## Questions before procurement

### Should I build or buy a B2B customer portal?

Start by checking whether an existing product supports your actual workflows, permissions and ERP integrations. Standard account access and document sharing may favor configuring SaaS. Unusual approval rules or multi-system dependencies may justify hybrid or custom development. This tool provides a directional assessment, not a vendor selection.

### When does a hybrid customer portal make sense?

A hybrid approach can keep standard features in an established SaaS or business platform while a custom integration or interface supports your unique processes. Confirm which system owns each data field, which team maintains each integration and what happens when the ERP is unavailable.

### How do I compare SaaS and custom customer portal costs?

Compare the full cost of ownership rather than an initial quote alone: licensing, implementation, integration, hosting, maintenance, security reviews and ongoing changes. This pilot does not estimate prices or validate vendor quotations.

### What should I test before connecting a customer portal to an ERP?

Define authorization boundaries, ERP API permissions, data ownership, retry limits and the handling of rejected or duplicated requests. The accompanying open tests illustrate synthetic RBAC, retry and audit-log behavior; they are not tests of a real ERP or a certified security system.

### What costs do B2B SaaS portal subscriptions leave out?

Check licenses, API and integration tiers, ERP connector maintenance, staff training, customer-specific changes, support, security reviews and eventual data export. Compare the full cost of ownership over the same period, not a subscription against a one-time development quote.

### Can a B2B dealer portal connect to SAP, Logo or Mikro?

Compatibility depends on the specific ERP version, modules, available APIs, licensing and network permissions. Require documentation and a realistic sandbox test before assuming any SaaS connector or custom interface will work. Mihenk does not claim a certified connector to these systems.

### What does a multi-branch B2B order portal need?

Define separate buyer and approver roles, branch-specific pricing, purchase limits, order visibility, credit rules and the ERP system of record. Test cross-branch isolation and rejected or duplicated orders; a shared catalog alone is not enough.

## Further decision guides

[Hidden Costs of B2B Ecommerce SaaS vs Custom Development](https://mihenkteknoloji.com/research/b2b-portal-saas-hidden-costs)

[ERP-Integrated B2B Dealer Portal: SAP, Logo and Mikro](https://mihenkteknoloji.com/research/erp-integrated-b2b-dealer-portal)

## Build vs buy research

[Read the B2B customer portal build vs buy guide and evidence limitations](https://mihenkteknoloji.com/research/customer-portal-build-buy-hybrid)

[Explore custom customer portal development](https://mihenkteknoloji.com/capabilities/product-engineering)

## Related
- [Build vs Buy a Customer Portal: SaaS vs Custom](https://mihenkteknoloji.com/research/customer-portal-build-buy-hybrid)
- [Hidden Costs of B2B Ecommerce SaaS vs Custom Development](https://mihenkteknoloji.com/research/b2b-portal-saas-hidden-costs)
- [ERP-Integrated B2B Dealer Portal: SAP, Logo and Mikro](https://mihenkteknoloji.com/research/erp-integrated-b2b-dealer-portal)