Whenever issues with dataloading occur errors like this popup: "This report couldn't access the data source. Contact [firstname], the author, to have it fixed. Email [firstname]".
We would like to have the email link (in error message) directing to the alternate email which we set up for this account for thus matter.
It occurs to me that only primairy email address is used in stead, which bazzles me after reading: https://docs.microsoft.com/en-us/power-bi/service-admin-alternate-email-address-for-power-bi.
By the way, sharing requests done by this user with 2 emailaddresses are sent on behalf of the alternate address. My conclusion is therefor that setting up the alternate address succeedded but error messages emaillinks only direct to the primairy email address.