Account Length Issue

I’m currently using standard ax and in general ledger> setup> parameters you have the ledger tab and in that you can specify the account length as you wanted but the problem i found is even though you have limited the number to 4 digits you can enter 5 or 3 and then save it how come this happen and is there are a way to pop up a error message to stop it. or you have to use a modifications for this. Please give u r valauable feedback. thanks in advance :smiley:

What is your Control Type set to? None?