Update field description

ecosystem/sep-0024.md

@@ -1077,7 +1077,7 @@ Each object in the `transactions` array should have the following fields:
 | `more_info_url`           | string              | A URL that is opened by wallets after the interactive flow is complete. It can include banking information for users to start deposits, the status of the transaction, or any other information the user might need to know about the transaction.                                                                                                                                                                                                                                                                                                                                                                     |
 | `amount_in`               | string              | Amount received by anchor at start of transaction as a string with up to 7 decimals. Excludes any fees charged before the anchor received the funds.                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
 | `amount_in_asset`         | string              | (optional) The asset received or to be received by the Anchor. Must be present if the deposit/withdraw was made using non-equivalent assets. The value must be in [SEP-38 Asset Identification Format](sep-0038.md#asset-identification-format). See the [Asset Exchanges](#asset-exchanges) section for more information.                                                                                                                                                                                                                                                                                             |
-| `amount_out`              | string              | (optional) Amount sent by anchor to user at end of transaction as a string with up to 7 decimals. Excludes amount converted to XLM to fund account and any external fees.                                                                                                                                                                                                                                                                                                                                                                                                                                              |
+| `amount_out`              | string              | (optional) Amount sent by anchor to user at end of transaction as a string with up to 7 decimals. Excludes amount converted to XLM to fund account and any external fees. This field is not set only when there is an indicative quote associated with this transaction.                                                                                                                                                                                                                                                                                                                                               |
 | `amount_out_asset`        | string              | (optional) The asset delivered or to be delivered to the user. Must be present if the deposit/withdraw was made using non-equivalent assets. The value must be in [SEP-38 Asset Identification Format](sep-0038.md#asset-identification-format). See the [Asset Exchanges](#asset-exchanges) section for more information.                                                                                                                                                                                                                                                                                             |
 | `amount_fee`              | string              | (**deprecated**) Amount of fee charged by anchor. This field is deprecated in favor of the `fee_details` field.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
 | `amount_fee_asset`        | string              | (**deprecated**, optional) The asset in which fees are calculated in. Must be present if the deposit/withdraw was made using non-equivalent assets. The value must be in [SEP-38 Asset Identification Format](sep-0038.md#asset-identification-format). See the [Asset Exchanges](#asset-exchanges) section for more information.                                                                                                                                                                                                                                                                                      |