The answer is yes, you can share promo codes with other advertisers. Here are some of the ways you can share your codes:
1. Use a personal referral link.
2. Use a special link that is only accessible to you and your partners.
3. Create a promo code share group.
4. Find a free service or piece of software that you can use to manage your share.
5. Use an email service provider that allows you to share links.