Customer portal development cost depends on what customers can do, which business systems must participate, and how exceptions are handled. Counting screens alone misses much of the work. Use the worksheet below to request comparable estimates for a specific first release.
This is a budgeting method, not a Yarify price list. An estimate needs confirmed scope and technical access; we do not publish a universal portal price or assume that every ERP exposes the required operations.
Start with one complete customer journey
Consider a hypothetical distributor whose customers request replacement documents. The first release might let an invited customer sign in, find documents belonging to their company, download them, and ask staff to correct missing information. Online ordering, stock reservations, and payments would be separate scope decisions.
This boundary is useful because a quote can include the entire journey: account setup, authorization, document retrieval, empty states, failed downloads, and the staff response. A quote for “a dashboard and document page” leaves those responsibilities unclear.
Copy this estimate worksheet
| Work package | Information to provide | Ask the supplier to separate |
|---|---|---|
| Accounts | Customer organizations, invitations, leavers, administrator roles | Identity-provider setup and custom permission rules |
| Documents | Source system, file types, volume, ownership | Retrieval, search, migration, and download controls |
| Integration | Actual API documentation and test access | Initial investigation, implementation, and vendor dependencies |
| Interface | Complete user journeys and supported devices | Design, accessibility checks, and implementation |
| Verification | Representative accounts and failure scenarios | Automated checks, business acceptance, and corrections |
| Operations | Hosting owner, support hours, incident contact | Launch work and recurring responsibilities |
Mark each input as confirmed, assumed, or unknown. Ask for an estimate range and the assumption that could move each uncertain package outside that range. This makes uncertainty visible without turning an early guess into a promise.
Compare two scopes before comparing suppliers
For the distributor example, compare a read-only document portal with a portal that also changes ERP records. The second option needs decisions about validation, approval, duplicate submissions, and uncertain responses. It may also require staff tools for recovery.
Ask both suppliers to price the same baseline and list those extensions separately. Otherwise a cheaper proposal might simply exclude integration failures or customer account administration. Use the portal requirements checklist to check that the baseline is complete.
Include costs after launch
Keep implementation, external subscriptions, and ongoing engineering in separate rows. Budget for hosting, identity and email services, dependency updates, monitoring, support, and future changes. Confirm whether supplier estimates include data preparation and your employees’ acceptance-testing time.
A low launch estimate can still require substantial internal work. Assign an owner to every excluded task before deciding that the proposal fits the budget.
What can reduce the first-release scope?
Limit the number of customer journeys and connected systems. Reuse a suitable identity service. Start with a controlled pilot group. Defer optional reports and preferences until there is evidence that customers need them.
Keep essential access controls and recovery paths in the first release. Removing them makes the quote smaller by leaving the application incomplete. Bring the worksheet, sample documents with sensitive data removed, and the system owner’s contact to your scoping discussion.
Put it into practice.
Explore our customer portal development service or send us the problem you are working on.