You never need to paste a link into generated content. Each creation carries one short link to the listing page, and it is different for each channel, so you can see which channel brought a buyer.
- WhatsApp messages and Facebook posts include the link.
- Ads show it in the field each platform asks for, such as Final URL or Website URL.
- Instagram captions do not include a link, because Instagram does not make caption links clickable. Put the link in your profile instead.