# What does the order rejection error "16415 : Invalid combination of MF/AON/Disclosed Volume" mean?

**URL:** https://tradingqna.com/t/what-does-the-order-rejection-error-16415-invalid-combination-of-mf-aon-disclosed-volume-mean/24509
**Category:** Order Rejections
**Created:** [October 29, 2017, 12:12pm UTC](https://tradingqna.com/t/what-does-the-order-rejection-error-16415-invalid-combination-of-mf-aon-disclosed-volume-mean/24509 "2017-10-29T12:12:15Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Kshiteesh\_Saralaya](https://tradingqna.com/user_avatar/tradingqna.com/kshiteesh_saralaya/32/5798_2.png) [@Kshiteesh\_Saralaya](https://tradingqna.com/u/Kshiteesh_Saralaya)
#### Post date: [October 29, 2017, 12:12pm UTC](https://tradingqna.com/t/what-does-the-order-rejection-error-16415-invalid-combination-of-mf-aon-disclosed-volume-mean/24509/1 "2017-10-29T12:12:15Z")

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**16415 : Invalid combination of MF/AON/Disclosed Volume**

Disclosed quantity feature isn’t allowed to be used in Pre Market hours [9:00am to 9:07am], if it is used, the order gets rejected & the above error gets displayed.