It might seem like a time-saving idea to copy and paste one proposal and send it to every client with a similar job. But most experienced freelancers will tell you it rarely works the way you hope. Clients can often tell when a proposal was not written specifically for them, and some platforms have started flagging repeated content in bids. Beyond the platform rules, there is also the question of whether it actually gets you hired. Have you ever tried sending the same proposal to multiple clients, and did it get you any responses?