To retrieve pending documents and access their onboardingUrl.

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Attention

After creating a subaccount, set a timeout of 15 seconds before making the call to this endpoint.

If the call to check subsequent documents is made immediately after creating the account, you may be informed to send non-mandatory documents because the account creation and validation with the tax authority have not yet been completed.

The time is only required for validation, necessary data capture, and account creation.