**Summary:** Securities accounts and their events now link to the product they belong to; products no longer list their securities accounts # Securities Accounts ## New Field: `product` Securities accounts now return `product`, the identifier of the product the securities account belongs to. Use it to retrieve the product via `GET /accounts/{account_id}/products/{id}`. It is `null` when the securities account does not belong to a product. This affects the following endpoints: * POST /accounts/{account_id}/securities_accounts - Create a securities account * GET /accounts/{account_id}/securities_accounts - List securities accounts * GET /accounts/{account_id}/securities_accounts/{securities_account_id} - Get a securities account # Events ## New Event Context Field: `product` The `SecuritiesAccountEventContext` now includes `product`, the identifier of the product the securities account belongs to. It is delivered on the `securities_account.created`, `securities_account.opened`, `securities_account.rejected` and `securities_account.closed` events, and is `null` when the securities account does not belong to a product. Example context: ```json { "account": "cusa_c2c3f89ec0524b6e818ce00c16e4897f", "securities_account": "sec_ac_00e49aeab85844c89de57929bcb0f76a", "product": "brok_c4ad0c3244bb4a7d97ee760290627dc2" } ``` # Products ## Removed Fields: `securities_accounts` and `securities_account` The link between a product and its securities accounts is now held on the securities account. The `securities_accounts` field (brokerage products) and the `securities_account` field (retirement products) have been removed from the product responses. To find the securities accounts of a product, list the securities accounts of the account and filter on `product`. This affects the following endpoints: * POST /accounts/{account_id}/products - Create a product * GET /accounts/{account_id}/products - List products * GET /accounts/{account_id}/products/{id} - Get a product

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