When a channel is configured with seed groups, seeds are applied to the channel output where seed column names match the output’s attribute names. How this comparison is made is dependent upon the context:
•Offer data extract channel: compared against export template attributes and attributes defined at the offer.
•Offer Email: compared against email address and attributes embedded in offer content.
•Offer Control: seeds not supported
•Broadcast: seeds not supported
•Export: seeds not supported
•Subscription group: seeds not supported
•Control: seeds not supported
Note that matches are not case sensitive. Where an attribute name contains a character that is not database compatible, that character is replaced by an underscore when performing the comparison against the seed column name.
Seeds are inserted at regular intervals in data extract export files in accordance with the number of seeds and the number of export records.
If no records are targeted by the activity, no seed fulfillment occurs.
Seeds can also be appended at audience execution, if configured at a batch audience or interactive activity configured with an audience . Note that audience-appended seeds are overridden by any downstream fulfillment activity seed assignment.