In an illustrative embodiment, an automated system provides for automatic negotiation, benchmarking, compliance, and auditing. The system may include computing systems and devices for receiving a request for transmitting a message to a remote party, and in response, providing a customization user interface including a message template with editable and non-editable input fields as well as a document selection interface for linking documents to the message. Message recipients associated with the remote party may be identified as having security access permissions corresponding to access parameters for the linked documents. In response to receiving inputs for the editable input fields, the message template may be converted to a message transmission format for transmitting the message with the one or more linked documents and transmitted to the remote party. The message and linked documents may be stored in at least one portion of a data repository.