If your company is using Trello for project management
- Try creating Change Request Flow(plan, protocol). Agree with the client on the steps which are going to happen each time they request a new change. E.g. if they request a new feature, the feature will be included into the next iteration/sprint.
- Try to systematise their requests. If they want to add a new button to the existing page, create it as a separate card, not as a comment. If they ask for numerous copy updates, put down these requests to a separate “Copy updates” card.