Your members will have the option to 'opt-in' to any consents that you put in place, in the profile module within the Admin Area. Click here to see how to set up your Consents.
For an individual membership - the user will click on their name in the top right corner after signing in - and select 'profile' - see below:
A group package member (or main contact of a Junior member) will click on their name in the top right and select the first name listed under "change the user" to show the 'edit profile' button. See below:
Click on the 'edit profile' button to the right of the name in large font and the following screen will display:
The user can update their details on this page - Click here to see all the options for changing 'your details'
Select the middle tab 'your privacy and consents' to change consents - see below:
The user can tick the box next to the consent to 'opt-in'. After any changes, the user can save these by clicking on the blue 'update my preferences' button.