Send suppliers the model, the drawing and the questions in one link.

Quotes and clarifications with suppliers travel as email attachments. Versions get mixed up, and the answer to “which revision is this quote for?” is a guess.
Invite the supplier to a workspace that holds the current model, the drawing and a short list of open questions.
Link files live so they always open the latest version, or freeze a link at a specific revision when a quote must not move.
Their questions and your answers sit on the part. Decisions become tasks with an owner and a date you can both see.
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