How to Set Reject Comments Mandate for Email Approvals in Expenses module

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How to Set Reject Comments Mandate for Email Approvals in Expenses

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Hi Team, We tried doing few setups in BPM approval to make the Rejection comments as mandatory in Expenses module. It is working fine when the approver is rejecting via notification. But its not working as expected for Email part. The moment the approver click on "Send" without making comments, email is sent and the expense is rejected.

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