Execution Interface External Fund

This execution interface contains the settings for creating fund orders that can be sent to fund companies.

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A Custody Account is selected for all execution interfaces. See the article Custody accounts on how to create custody accounts.
The Trade Calender determines when the instrument is tradable and when orders can be expected to be executed by the fund company. See the separate article about managing trade calendars.
The counterparty Account is the own book account with the house since that is the counterparty to all internal trades.
Rounding Account is representing an account owned by the house where any rounding differences get booked.
Payment Account points out which external account will be used for cash transfers related to trading. 
Buy Amount, Sell Amount, and Sell Unit are used to control which kind of orders are allowed. 
Is Prepaid should be checked if buying the instrument requires prepayment. 
Min Subscription Amount and Min Redemption Amount state the minimum amount per order. 
Quantity Decimals are the maximum number of decimals used for unit orders. 
First Trade and Last Trade set time limits for when the instrument is tradable.

Front-end load fee and Back-end load fee are just used for information and do not have any logic to create fees.

In addition to the execution interface settings on the individual instruments, there are a number of global settings that should be managed. To access, navigate to System Data→Execution Interfaces and select edit for the External Fund interface.

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The settings view will show up with the following properties:

Workflow Buy and Workflow Sell determine what statuses will apply to the resulting orders and how orders can transition between various statuses. By default, these should be set to ExternalFundOrder...

Acceptance Difference (NAV) measures the difference in the proposed fill price in relation to the previous day's NAV price as recorded in BFS. If a value of 50 was entered this means that a difference of 50% will be accepted.

Reservation Multiple is used to reserve a margin of extra fund units when selling a fund holding using a fixed amount as opposed to a fixed amount of units or percentages of the holding. If 1.1 is entered as the multiple 10% will be added to the number of fund units that will be reserved for the sell order.