1040-US ELF: Error Code CSUS02

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MFA required for electronic filing

Effective May 3rd, the 2017 version of UltraTax CS requires multi-factor authentication (MFA) to transmit e-files from CS Connect. Find out more.

Error Code CSUS02: An attachment's name is invalid; the name of the attached PDF file must be less than 49 characters and must not contain 2 consecutive spaces. Rename the file and then re-select the attachment in Edit > Electronic Filing Attachments.

For instructions on properly attaching PDF files to electronic files, see Attaching Portable Document Format (PDF) files to electronic files.

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