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Go to Setup > All Sites > New
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For the Student& Staff Portals, choose Build Your Own (Aura).
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Search the component in the Components section > Drag and drop the component PosiEd Calendar Component > tick the Is Student Portal
Also, check this documentation for the Absence Submission component set up in the Parent Portal.
Student Portal
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Follow the same process for the Carer and Staff Portals.
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