Fail to migrate under GST

You can try again later today. The window for migration will reopen on June 25th

can you please share the source of information because nothing is available on aces or gst portal regarding gst window reopening

sure! here it is :
https://m.thehindubusinessline.com/economy/gst-registration-for-businesses-to-reopen-on-june-25/article9726947.ece

On home page of gst site notification is shared.Check it out.

my rc is cancelled so I am unable to migrate to GST.

RC Cancelled message

While migration of GST their registration into the GST common portal the message displayed was :
"Your RC is cancelled therefore your provisional ID stands cancelled & you are not permitted to migrate under GST"

It is because Provisional IDs issued to registered in ACES till 31.01.2017 and not utilized by the entities (Assessees) has been cancelled as either not required or as non-usable.

In such cases the Assessee wants to migrate to the GST portal he should follow the following instructions:

1. Send email to cbecmitra.helpdesk @ icegate.gov.in from registered email ID to ACES.

2 E-mail should from assessee registered ID.

3. Subject of email will be - PID required to migrate to GST

4. Mension your Service Tax or excise R C Number(s).

5. Any other problem faced in enrollment shall also be mentioned.

6. May also call to helpline to describe problem for further solution.

mam I am done all this method but no action was taken by helpdesk .still the problem shown.

Wait soon reply will be received from helpdesk.

Talk to Toll free once in 2-3 days for confirming same.

https://twitter.com/askGSTech/status/875286810389360641