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This question already has an answer here:

I am deploying a contract from a Parity instance that has several accounts within it. When I deploy a contract at the console of the same computer, Parity UI asks me for a password to unlock the account.

And then sometimes when I add a new account, it asks for this password instead.

How does Parity choose which account to debit to deploy from (or is this an ETH thing and not Parity specific)?

marked as duplicate by Waqar Lim, Malone, Richard Horrocks, flygoing, Ismael Nov 21 '17 at 1:55

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

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I believe Parity sets the last account created as the default account. If you do not specifically set the address to spend from when you deploy the contract (send the transaction) then it should default to the last account created.

A deeper discussion can be found at https://github.com/paritytech/parity/issues/3135

EDIT:

Looks like there isn't much to that issue page actually. I checked out command line options at https://github.com/paritytech/parity/wiki/Configuring-Parity , but didn't see anything for assigning a default account in the 'Account Options' section. Regardless it should be the last account that was created.

  • Going a little deeper, do you know how to manually specify the address to spend from? – stone.212 Oct 19 '17 at 2:41
  • Not in Parity, I use geth. You could always open an issue on Parity's github though. Somebody there will have a much more precise answer. – jojeyh Oct 19 '17 at 3:22

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