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Sometimes the audience is decided outside Lobyco — a list from a partner, a store’s own selection, a one-off export. The Seed block takes a file of customer IDs as the campaign’s input, in place of a Member Segment block.

What you’ll build

Start a new campaign

Open the Campaigns tab and select Add new campaign.

Add a Seed block and set it to file mode

Upload the file of customer IDs. See Block reference.

Add a Split block and connect it to the Seed block

In this example the imported customers are grouped by age.

Run the campaign

Wait for the execution to finish, then download the outcome and check the results.
A Seed block replaces the Member Segment block as the campaign’s input — it does not sit after one.
Last modified on September 24, 2026