Ask How do you manage the transition when a freelance client wants to change communication channels mid project?

[Edward22]

From what I have seen, many communication problems in freelancing come from changing how messages are sent during an active project. Some clients start on one platform, like email or a project management tool, and later shift to personal messaging apps or phone calls without agreement. This makes keeping track of instructions and file versions difficult for the freelancer. Important details often get lost across different channels. How do you maintain a single source of truth when a client switches communication methods without warning?