In case you have more than one Shopify store, you can use the Multi-store feature to quickly access each account, sync new affiliates among stores, and track affiliate performance across connected stores (the feature is available on the Enterprise plan).
To be specific, the Multi-store feature helps with:
Activating Multi-store, on each shop, there will be a dropdown showing the URLs of the connected stores, you can easily click on the store on the list to access other accounts.
When an affiliate signs up on one store, the system will automatically create his/her account on other shops, there will also be a dropdown of the connected shops on the affiliate account.
On each shop, the affiliate will have a separate affiliate link (with a unique referral code) to promote, but the ref code can work across any connected shops.
1. Visit Settings => Connect multiple stores
2. Activate the Multi-store feature and choose one store as the main store. (The main store must be on the Enterprise plan)
3. Add other shop URLs to connect with the main stores.
NOTE: In case before connecting multiple stores, your account has already had affiliates, you need to sync the existing affiliates to other stores.