Hi @siribakke01,
Thank you for your two reports. I am actively working on the other. In regards to this issue, please visit the coupon and look under the blue line named ‘Auto Coupons’ for the settings. You will see two checkboxes, ‘Apply via URL’ and ‘Auto Apply’. If you only want to share a URL to select customers, check ‘Apply via URL’ and do not check Auto Apply.
This plugin along with the Apply via URL option does not restrict the use of coupon codes to the URL, it only makes the URL an additional option for applying the coupon code. The coupon can still be applied manually.
WooCommerce doesn’t publish coupons or list them publicly and Auto Coupons does not either. However, if the coupon is short or easy to guess a customer could potentially guess the coupon.