I have two types of invoice bills, Invoice bill 1 , Invoice bill 2.
When i select Invoice bill 1 type, Invoice number will be INA001, INA002, INA003, INA004,...
When i select Invoice bill 2 type, Invoice number will be INB001, INB002, INB003, INB004,...
I will select these two types of Bill Alternatively.
For example: If customer A comes i will give him - Invoice bill 1 number INA001, customer B comes i will give him - Invoice bill 2 number INB001, customer B comes i will give him - Invoice bill 1- then the bill number should be INA002. etc...
Is it possible in openerp?