990-US ELF: Error code R0000-933-01

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MFA required for electronic filing

Effective May 3rd, the 2017 version of UltraTax CS requires multi-factor authentication (MFA) to access the electronic filing transmission feature in CS Connect.

Thomson Reuters is committed to proactively evolving our security features to help you protect your firm and your clients' data. For more information about multi-factor authentication, see Multi-factor authentication overview.

Error code R0000-933-01: If "Amended Return" or (Superseded for 1120/1120S/1120-F/1041) checkbox is not checked, then taxpayer TIN in the Return Header must not be the same as a TIN of a previously accepted paper return for the return type and tax period indicated in the tax return.

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