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NetSuite Professionals

Hey,
Is it possible to add an "Approve" and "Reject" button for invoices and purchase orders in the approval mail that gets send to the approver?

So they dont have to log in to approve

depends on how secure you want your approval process to be

if you dont care, you make an externally available suitelet

If going the external suitelet route, I'd recommend generating a random token for each transaction to make it more secure

Another option is to allow users to reply with their approval using an email capture plugin. This is how SuiteApprovals does it