Business rules are not being applied in New Hire Data review or Personal Data Collection Pages, however, the same rule is getting triggered in Manage Pending Hires or "Add New Employee".
SAP Successfactors Onboarding 2.0
At moment, onInit and onSave business rules are not supported on the steps New Hire Data Review / Personal Data Collection.
If that is required to your business case, our recommendation is to log an enhancement request as described in the following article: 2090228 How to Submit Enhancement Requests for SAP SuccessFactors Products
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