Methods, apparatuses and computer program products for implementing at least one communication barrier in a group-based communication system are described herein. The apparatus is configured to at least receive a first group correlation between a first user identifier and a first group identifier, receive a second group correlation between a second user identifier and a second group identifier, retrieve a communication separation settings set associated with the first group identifier and the second group identifier, and cause rendering a first electronic indication on a group-based communication interface. In some examples, the first user identifier is associated with a first workspace identifier and a first group-based communication channel. In some examples, the first group-based communication channel is associated with the first workspace identifier and a second workspace identifier.