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Contacts to ContacList - Response: Request Entity Too Large

  • 1.  Contacts to ContacList - Response: Request Entity Too Large

    Posted 06-05-2025 19:21

    Ali_Aljohani | 2021-06-28 12:50:45 UTC | #1

    Hello Everyone,

    I am using: /api/v2/outbound/contactlists/{contactListId}/contacts However, I receive a text response saying "Request Entity Too Large " when I try to upload total contacts above 38000.

    Also, with above 40000 contacts I receive time-out as well.

    Can anybody please let me know what are the limitations to upload contacts? What is the maximum number of contacts?

    Best regards, Ali Aljohani


    Jerome.Saint-Marc | 2021-07-07 14:36:33 UTC | #2

    Hello,

    There is a limit in terms of max number of contacts that can be submitted with this endpoint (in a single request). POST /api/v2/outbound/contactlists/{contactListId}/contacts accepts an array of up to 1000 contacts.

    So you would have to split your contacts per chunk of 1000 and send multiple requests. Or, preferably (recommended), you can upload the contact list list by importing CSV files, where there is not such limit.

    Regards,


    system | 2021-08-07 14:36:37 UTC | #3

    This topic was automatically closed 31 days after the last reply. New replies are no longer allowed.


    This post was migrated from the old Developer Forum.

    ref: 11329