To create a free shipping voucher, you can refer to the topic below:
Learn more about how to create a normal free shipping voucher
Learn more about how to create first time sign up free shipping voucher
Difference between a normal free shipping voucher and a First Time Sign Up Free shipping voucher:
The First Time Sign Up Free shipping voucher is exclusive to first-time sign-up members, while the normal free shipping voucher can be made available to the public or members.