[Axapta-Knowledge-Village] Account Payable - Purchase Journal

Hi, What is the purpose of Purchase Journal in Account payable? This kind of record only can use for importing batch data, cannot be post. Why is the main concern of creating this journal? In real life, does this journal been frequent use? Thanks.

[Axapta-Knowledge-Village] Error executing code: Object object does not have method 'name'.

Does anyone hit this error before? It is an error occur while I called a report in DAX using Business Connector. (C)\Classes\Object\name (C)\Classes\SysSetupFormRun\new - line 9 (C)\Classes\SysSetupFormRun\construct - line 13 (C)\Classes\ClassFactory\formRunClassOnClient - line 5 (S)\Classes\Clas