What would you suggest as "Trigger Size" value for a replication agent in batch mode?I understand that it should be a balance between not being too small (so package get created and replicated continuously, but not too big (because create and replicate big packages can also create problems). What wo...

Probably what you need is a system user to be able to write your xml into repository?As @arunpatidar said, it does not make sense to have a request when running a scheduler.