I think the steps to send a wedding invitation link to Douyin are as follows:

1. Create a new document on the computer desktop; 2. After entering the document, click the "Mall" option in the upper left corner; 3. Then you will enter the mall page and enter "electronic invitation" in the search box; 4. After entering, click the "Search" button; 5. Then find the "invitation" you need in the search results, click the left mouse button to download and install; 6. After installation, you will enter the invitation editing page, enter the relevant information as required, and then you can forward it to Douyin.

I hope my answer is helpful to you!