What would be the failure message if there is wrong LAC-TAC mapping?

Hi All.

What would be the failure message if there is wrong LAC-TAC mapping?

Drop call plus Core will not give permission to the call flow.

But drop calls alos because of PCI Conflict, HO Failure, Target site Capacity/No resource available/Poor RSSI issue And many other.

How we will know this drop is because of LAC-TAC Issue?

Means any counter or any message?

Multiple TAU msgs will be there.

TA update timer will expire if not in list.

No idea for the counters or drop call resources, but the call will not succeed because of the wrong configuration.