ADFdi Security for AP Invoices

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We will be implementing Fusion ERP and wanting to understand security around ADFdi specific to AP invoices. Our business would like business line users to populate the ADFdi template with invoice details but not have the ability to upload. I know there are some fields that a validate at the time of input but wondering if there are other validations that only occur at the time of import or of there is the ability to for a validation process to be performed but not allowing upload?