Can excess in another account be used to meet my Intraday Margin Deficit (IMD)?

No, excess funds in another account cannot automatically be applied to satisfy an Intraday Margin Deficit (IMD). If there is excess in another account, the customer must transfer those excess funds to the account with the IMD in order to satisfy it.

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What happens if I do not satisfy an Intraday Margin Deficit (IMD)?
Is my account restricted from being transferred to another broker if I have an open Intraday Margin Deficit (IMD) despite being in end of day margin compliance?
How am I impacted if my account has an Intraday Margin Deficit (IMD) call and Excess Funds Sweep is set to commodities?
Can my account receive credit for a pending deposit if my account is subject to the 90-day restriction?