A customer gets a referral link, enters the store but hesitates with purchase. After a day or two the customer returns without using a link and buys something.
Is there a way to link an exisiting customer with an affiliate?
That is not possible at present. Feature request PBAS-30227 was submitted and is considered to be implemented in future OBAS releases.
Please consider watching Odin public sources for information about updates in our products:
Knowledge base, each product update comes with a corresponding KB article.
To avoid such situations an end user should always use a referral link.