The verdict in three sentences
A solid B2B extranet requirements document in Miami first defines roles, approval workflows and integrations before talking budget. A well-specified scope runs 35,000 to 80,000 USD in 2026 and prevents 80 % of costly change orders. Without a structuring document, agency bids become incomparable and the project drifts.
The minimum requirements template
A good requirements document covers six blocks. Each block must be priceable by an agency without ambiguity.
| Block | Requirements to specify | Criticality |
|---|---|---|
| Roles and access | Who sees what, hierarchy levels | High |
| Workflows | Approval, statuses, notifications | High |
| Data | Documents, invoices, orders, products | Medium |
| Integrations | ERP, CRM, accounting, SSO | High |
| Security | Encryption, logging, data regulation | High |
| Performance | Load time, low bandwidth, uptime | Medium |
The more precise these blocks, the more comparable and reliable the bids you receive.
Requirements vs criticality vs cost
Not every requirement carries the same price. Here is a 2026 order-of-magnitude estimate to decide what belongs in phase 1.
| Requirement | Criticality | 2026 cost (USD) | Recommended phase |
|---|---|---|---|
| Authentication and base roles | High | 9,000 | 1 |
| Multi-level approval workflow | High | 15,000 | 1 |
| ERP integration (stock, pricing) | High | 18,000 | 1 |
| SSO (Azure AD / Google) | Medium | 11,000 | 2 |
| Analytics dashboard | Medium | 9,000 | 2 |
| Dedicated mobile app | Low | 18,000 | 3 |
Phasing lets you ship a useful foundation fast, then invest on proven value.
Mini case study
Mark, procurement lead at a Miami wholesaler, is preparing an RFP for an extranet. Without a requirements document, he receives three bids from 35,000 to 80,000 USD, impossible to compare. After specifying 18 requirements ranked by criticality, bids tighten to 54,000-62,000 USD, a spread of just 15 %. The roughly 20 hours spent writing the document saves an estimated 15,000 USD change order and two months of delay. The requirements document is the highest-return investment in the project.
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FAQ
Who should write the requirements document?
Ideally the commercial or business lead, supported by a technical consultant. The agency can help, but a neutral document guarantees comparable bids.
How long should an extranet requirements document be?
15 to 30 pages is enough: precise enough to price, flexible enough to let the agency propose its technical solution.
Should we specify the technology?
No, specify needs and constraints (security, integrations, bandwidth). Let the agency propose the most suitable, justified stack.
How do we compare agency bids?
Use a common grid: scope covered, timeline, maintenance, references, warranty. A low price often hides scope exclusions.
How long from requirements to go-live?
Plan on 12 to 18 weeks for a full B2B extranet, including 2 to 3 weeks of UAT with your pilot users.
Let's scope your project. Send us your key requirements and RFP timeline, and we'll help you structure a priceable document. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
