AMEND 2023 return with updated ITIN for Child Tax Credit

[byspp9151q]

I have applied ITIN for my child along with Federal TAX return filing in 2023. The ITIN got rejected with the reason that I haven't claimed child tax credit. This happened as the checkbox "Credit for other dependents" was not selected in 1040. I was asked by the IRS to send the documents via mail for ITIN and I received ITIN for my child. But, the child tax credit $500 was not refunded in 2023.

I'm planning to AMEND 2023 returns to get the child tax credit. Can someone guide through the process?

[KrisD15]

HERE are the steps to amend your return using TurboTax. 

In order to get the 2023 Child Tax Credit, you would have needed to have applied for an ITIN before the due date of that return.