FBCJ Cash Payment

Dear Gurus,

I've problem in cash journal FBCJ.

I use busenis transaction cash out (Trans out 2; type E; Acct Mod tick). in document split i filled BT Vebdor in 1st line and Cash Out in 2nd .

when i want to post there is an error message "Enter a vendor for this accounting transaction" .

Any idea about thie error ? i can't post this journal.

Thank you.

Iwan Siahaan