IDOC message type for transaction G/L Account master data entry

Hi,

I'm trying with LSMW to use IDOC for upload of G/L Account master data SAP (transaction FB50).

What "Meesage type" should I use. I have search and I'm not sure that "ACC_DOCUMENT" with Basic type ACC_DOCUMENT02 is the right way. Could somebody resure me about this?

Thanks