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PUT
Adds items to a list. The shape of each item in the items array must match the list’s objectType. Sending the wrong shape (e.g. a contact item to a company list) returns 400. You can add up to 100 items per request.

Request

Path

string
required
Obfuscated listId returned by the overview endpoint.

Body

object[]
required
Up to 100 items to add. The item shape depends on the list’s objectType:
  • COMPANY{ "countryCode": "BE", "companyId": "1778186251" }
  • LEGAL_ENTITY{ "legalEntityId": "998877", "countryCode": "BE" } (countryCode is optional)
  • CONTACT{ "company": { "countryCode": "BE", "companyId": "1778186251" }, "contactIdentifier": { "contactId": "123456" } }

Response

boolean
true when at least one item was added successfully.
object[]
Items that could not be added, each with the original item and a message explaining why (e.g. Company not found, Invalid contactId).