In the rejection report you'll find a number in square brackets [   ]  thats the dependent that caused the rejection.

This is a screen shot of a 2018 return that got kicked back because the non custodial parent erroneously claimed the first 2 kids listed as dependents on this taxpayers return.  You can access this screen by highlighting the rejected return in the EFCenter, then hit F12 and choose Rejected Returns

Can you please confirm what the numbers noted in the [  ] represent .......

as an example.....

......is the IRS1040[1] indicating how many dependents are causing this rejection and the DependentDetail [2] is this telling us it was the 2nd dependent noted on the return?  Am I reading this correctly?