FBCJ - Badi CJ_DOUMENT is not run

I have created Z Implementation ZCJ_DOCUMENT for Badi definition CJ_DOCUMENT.

I put a very simple code into CHANGE method of my ZCJ_DOCUMENT.

DATA: txr.

txr = '1'.

I want to see if the Badi is called in FBCJ - so I put a breakpoint on the above.

But it is not called.

I have activated my ZCJ_DOCUMENT.

I expect the Badi to be called after I click POST button in FBCJ - this is when the Fi doc is being created.

Please reply anybody who successfully implemented Badi CJ_DOCUMENT or have the same problem as I do.

Thank you very much,

Tatyana.