How to change parked FI document?

Hello SDNers,

I have to a requirement to change the following fields in a parked FI document -

• BKPF-BLDAT
• BKPF-XBLNR
• BKPF-BKTXT
• BSEG-MWSKZ
• BSET-FWSTE

I have checked out the following FMs -

• PRELIMINARY_POSTING_UPDATE - This will call the screen and does not fit the bill
• PRELIMINARY_POSTING_UPDATE_ENJ - Table params are actually exporting and the values are not used by the FM.
• PRELIMINARY_POSTING_DOC_WRITE - This works But direct DB updates are done inside the code and unfortunately change documents are not written.

Did you use any specific FMs or did a CALL TRANSACTION on FBV2 to achieve this requirement?

BR,

Suhas