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A deposit creates the associated token vault on first use. There is no separate collateral-position account. The vault’s SPL balance is the credited amount.

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Steps

  1. Open your margin account.
  2. Choose the asset and amount.
  3. Confirm user_deposit_collateral (or a composite that includes it).
  4. Check the collateral row after confirmation.
Donations sent directly to a vault still increase that account’s credited collateral — the vault is private to one margin PDA, so they cannot skew a shared exchange rate. Shared reserves are different: they ignore unsolicited transfers. SOL deposits wrap to WSOL.