How to Resolve Error - “Authentication failed at emas”

Prakash Matre
Prakash Matre at September 25, 2022

Sometimes while we are about to attach the DSC to file the return be it GSTR-3B, GSTR-1 or TRANS-1, the error message “Authentication has failed at emas. If error persists quote error number rt-3bas1031 when you contact customer care for quick resolution is displayed. This error "DSC authentication failed" will be resolved by updating the DSC. So let’s understand the resolution for the same and also about rt-3bas1031 GST error, exception in emas, GST digital signature error authentication failed, DSC error in GST. Next, we'll know how to solve DSC authentication failed in e-procurement.

  1. Go to My Profilemy profile - gst portal
  2. Click on Register/ Update DSCregister - gst portal
  3. The Register Digital Signature Certificate page is displayed. In the PAN of Authorized Signatory drop-down list, select the PAN of the authorized Signatory that you want to update and then authentication failed at emas eror comes.
  4. Click the UPDATEregister digital signature - gst portal


    Before you update your DSC at the GST Portal, you need to install the em-Signer utility. The utility can be downloaded from the Register DSC page. DSC registration is PAN based and only Class 2 and Class 3 DSC are accepted at the GST Portal.

  5. Click the CONTINUE

    dsc re-registration - gst portal
  6. Select the certificate. Click the Sign button.

  7. A successful message that “DSC has been successfully updated" is displayed.

With the help of above given steps you'll come to know about GST dsc error.  

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