Users have the ability to follow a maximum of 500 records in Chatter.
See also:
Increase limit on the number of records or Users that you can 'Follow' in Chatter
Data Loader can be used to run an export on the 'Entity Subscription (EntitySubscription)' object and generate a list of the records that are currently followed. That export file can then be used to perform a delete operation against the same object to effectively unfollow those records. For a Data Loader installation guide, you may watch our Salesforce Support YouTube video How to Download and Install Data Loader.
ParentID refers to the record that the user is following.
SubscriberId refers to the User who is following the record.
To Export:
Note: You can do the opposite to mass follow records if you have a .csv file set up properly with the correct Parent Id & Subscriber IDs while keeping your Follow Limit in mind upon import.
000385905

We use three kinds of cookies on our websites: required, functional, and advertising. You can choose whether functional and advertising cookies apply. Click on the different cookie categories to find out more about each category and to change the default settings.
Privacy Statement
Required cookies are necessary for basic website functionality. Some examples include: session cookies needed to transmit the website, authentication cookies, and security cookies.
Functional cookies enhance functions, performance, and services on the website. Some examples include: cookies used to analyze site traffic, cookies used for market research, and cookies used to display advertising that is not directed to a particular individual.
Advertising cookies track activity across websites in order to understand a viewer’s interests, and direct them specific marketing. Some examples include: cookies used for remarketing, or interest-based advertising.