1. Open Sage Personal Tax, then open the client with the failed submission.
2. From the navigation tree, clickTax return and computations then click SA100 Tax Returns.
3. Double-click the relevant final return that was submitted.
4. From the tasks pane, click Continue submission process or click the Submission icon from the toolbar.
5. Under the 'Next steps' section, click the blue View response link.

Error 1046 is an authentication failure. You may receive error 1046 if you enter incorrect or invalid credentials.

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Error 3001 is a generic error that provides an additional code to resolve. You can find the exact error by following the steps under the "Check your error" section above.

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You'll see this error if something prevents the submission of the return, and the messaging system between the calling application and HMRC's servers has broken down, or is temporarily unavailable. The processing of the document has failed and you need to re-submit.

1. Check that the computer you are filing from has Internet access and that a firewall is not blocking access to the Internet for Sage Control Centre.
2. Re-submit the return.

You may have to wait for up to one hour before you re-submit.