If your bank account or credit card has multiple card holders, each with their own card, Plaid will not return sub-accounts separately via the /accounts/get endpoint, as these accounts are considered to be part of the primary account.
However, you can use the account_owner field on transactions returned by /transactions/sync (or /transactions/get) to filter for transactions posted to individual sub-accounts. Some more context on this field:
account_owner is not typically populated, and only relevant when dealing with sub-accounts.account_owner information is formatted. It might be just the last 4 digits, last name and mask, full name, etc. It shows in the format that is sent to us by the bank (e.g. \"O. Winfrey - 0000\", \"Winfrey - 0000\", \"0000\", \"Oprah Winfrey\", or some other format).account_owner value.Our docs provide more info on the account owner field.
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