GST Form Not Taking Primary Authorised Signatory

[lakhya phukan]

I am trying to register with GST. When I select the promoter as the primary authorized signatory page, the system prompts that I can not add the same email/mobile as it exists! What am I doing wrong?

[Padmanathan KV]

the same combination of email id and mobile no which you are now trying to register might be already used for some previous GST registration. Try a different e-mail id or mobile number.

[KASTURI SETHI]

Mobile No. and email ID of Authorised Signatory must be different and NOT same (of Applicant).

AI Summary

Primary authorized signatory contact uniqueness: use distinct email and mobile to complete GST registration successfully.
Primary authorized signatory selection in GST registration can be blocked if the same email and mobile combination is already associated with another registration; the portal enforces uniqueness of email-plus-mobile and the authorised signatory must have contact details different from the applicant's.