There are circumstances in which users will be asked several times to activate their device when logging into Salesforce mobile app. This situation is normally caused by logging in from an unauthenticated IP address such as when users are traveling to different locations.
For organizations with trusted IP ranges under Network Access or IP restrictions at profile level, there are several methods which will allow Salesforce for Android and iOS users to authenticate. One option is to relax the app's IP restrictions.
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