The Validation Log displays any validation warning and or errors on the expense report.validation messages appear on an expense report when a policy or a rule set by an administrator is violated. Different level of validation flags may appear depending on the level of significance set by an administrator.
High Warning = Allows the report to be released, but the importance of the validation is high.
Warning = Allows the report be released.
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Information Only = Allows the report to be released and it is only . The validation attached is for information to either the user or approvaland approver.