Group-based communication apparatus configured to implement operational sequence sets and render workflow interface objects within a group-based communication system

A method of joining users to a group-based communication channel, the method comprising:

• identifying one or more topics associated with the group-based communication channel from a plurality of messages;
• identifying one or more suggested users who are associated with an expertise corresponding to the one or more topics based on a frequency of mention of the one or more topics by the one or more suggested users;
• generating a channel member suggestion set including one or more suggested users who are recommended to join the group-based communication channel;
• prior to generating a channel invitation request to the one or more suggested users:
• receiving, from a member user of the group-based communication channel, an approval to invite the one or more suggested users to the group-based communication channel;
• joining the one or more suggested users to the group-based communication channel based on one or more criteria;
• and
• notifying the one or more suggested users of at least one message of the plurality of messages in which the one or more suggested users have an associated expertise.

A system comprising at least one processor and at least one non-transitory memory storing computer executable instructions that when executed by the at least one processor cause the system to carry out actions comprising:

• identifying one or more topics associated with a group-based communication channel from a plurality of messages;
• identifying one or more suggested users who are associated with an expertise corresponding to the one or more topics based on a frequency of mention of the one or more topics by the one or more suggested users;
• generating a channel member suggestion set including one or more suggested users who are recommended to join the group-based communication channel;
• prior to generating a channel invitation request to the one or more suggested users:
• receiving, from a member user of the group-based communication channel, an approval to invite the one or more suggested users to the group-based communication channel;
• joining the one or more suggested users to the group-based communication channel based on one or more criteria;
• and
• notifying the one or more suggested users of at least one message of the plurality of messages in which the one or more suggested users have an associated expertise.