Same number sequence for debitor and creditor in AX2012

Hello.

We want our ax2012 to automaticly use the same number for debitors and creditors. Basicly, if a new party is created in the global adressbook, it should get the same number for beeing a debitor and creditor., There is a button in the references tap of the number sequence but its grayed out. Any chance to activade that button or any known way how to set it up by hands?

Thanks in advance.

I don’t think that AX supports that - you would have to customize how AX works. Both customers and vendors would have to use the same number sequence (to avoid conflicts) and you would have to implement the logic for synchronization.