A business wants a customer portal, but its first design shows little beyond a welcome message. Begin with the tasks customers repeatedly ask staff to do: retrieve a document, check a request or supply missing information.
Pick a useful customer journey
Define what the customer can see, what they can change and how the business responds. A status view should explain the next step rather than expose internal labels that make sense only to staff.
Keep customer-visible information separate from private internal notes. The permission rules must apply to records and files, not simply hide a navigation link.
Review the awkward moments
Test a customer related to several organizations, an expired link and a request with missing information. Check account recovery and what happens when access should end.
Ask a representative user to complete the task on a phone. Watch whether the portal actually removes the support exchange or creates another place they need help.
A useful first portal can be small. One clear self-service task with appropriate access and a helpful failure path may be more valuable than a broad dashboard nobody understands. Bring the repeated customer question to the project discussion and use it to define the first result.