Specifically for the delete type "by key" or "by id" as outlined in the documentation: POST /contacts/v1/contacts/actions/delete?type=keys

Wasn't finding any specific documentation on the matter but maybe looking in the wrong spots.

1 Answer 1


The best method for mass deletion of contacts is by using the Delete by list reference method, which allows you to delete batches of up to a million records at a time:

When deleting from a sendable data extension, the call limits each process to one million rows.

You can read more about automating contact deletion in my answer to this question:

Trying to automate contact deletion with SSJS

  • This information and links are a gold mine -- thank you. Although I was looking specifically for the limitations on the REST call for deleting by KEY or ID, which was not clear in the question. I am looking for ongoing deletion (daily) and not mass deletion.
    – Daniel
    Jun 12, 2021 at 15:04

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