A communication apparatus, capable of performing communication using a first channel access method that uses at least a Primary channel in one link and a second channel access method that, in a case where the Primary channel is in a busy state, uses at least one Non-Primary channel different from the Primary channel from among a plurality of channels included in the link instead of using the Primary channel, notifies another communication apparatus, which has a function of executing communication using the second channel access method, of first information usable by the other communication apparatus to determine whether or not communication using the second channel access method is permitted; and communicate with the other communication apparatus that received the first information.