Hi,

By default in Odoo, only internal users with full user accounts can fill in appraisal forms, because the Appraisal module is designed as an internal HR tool and does not expose records to portal users. That’s why when a portal employee clicks the email link, they are redirected to the portal but cannot see their appraisal. If your client wants every employee to fill in their own appraisal without paying for full user licenses, there are two common approaches: either customize the portal to give employees access to their appraisal records, or use the built-in survey integration where each appraisal is linked to a survey form. With the survey option, employees can complete their appraisals through a survey link without needing internal accounts, and HR can automatically attach the results to the appraisal record. This makes the survey method the most practical solution if the goal is to collect appraisal feedback from many employees without giving them all paid Odoo access.

Hope it helps.