Repurpose the idea, not just the paragraph
Keep the core message. Change the angle and format to fit the place it will be read.
Find the transferable idea
Choose one argument, lesson, or example from the source. A social post may need a single practical takeaway; an email can connect the lesson to a decision. Neither needs to reproduce the whole original piece.
Adapt to the context
Ask what the reader already knows in each channel. Add enough context for the piece to stand alone, and choose one clear invitation. Avoid carrying a long introduction into a format that needs to get to the point.
Keep a link to the source
When the source changes, review the related pieces too. Keeping a small list of adaptations makes corrections and future reuse easier than treating every version as a new project.