How to create a Pinterest Photo Carousel
First of all, go ahead and click Planner and then Posts. Once you are redirected go ahead and click Create new
Choose your Pinterest account
Upload two pictures to make a carousel, click the little Pinterest logo on the top as shown in the picture, and choose the board you want to upload in. Then hover over to your bottom right corner and either schedule it for later or post now.
After clicking Post now your post should light up green as shown in the picture.
As you can see It was posted on Pinterest account without any issues.