An error will occur when using a group that has Key attribute data to send an email blast with swiftpage.
E-mail blast creation failed. missing field name in recipient data
Product Management have stated that including Key Attribute data in Swiftpage emails is not supported.
From v7.2b, the error message the user will receive now indicate this, rather than return a generic error message.
If the customer wishes to raise an enhancement request for Key Attribute Data to be supported for Swiftpage emails we would recommend they submit an idea to our Ideas Hub on the community site: