Version: eXtendWebApproval 1.0.9 and above
Audience: Administrator, User
Problem
When a web approval link is opened, the error message "Invalid login attempt" is shown.

Solution
This is related to the access token for eXtendWebApprovals no longer being valid in NetSuite. See "Invalid Login Attempt" from an eXtendTech Application or Integration for information on resolving this issue.