How to custom data before save record?

I have a form with Repeater, the repeater is used to create new user, i want if there is any new user is added to repeater, then an email will be sent to them, which hook of filament help me to do it ?
Solution:
Nvm, i found mutateRelationshipDataBeforeCreateUsing() can solve my problem
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Solution
03_dotuan
03_dotuan4mo ago
Nvm, i found mutateRelationshipDataBeforeCreateUsing() can solve my problem