How to change the Header Text value in VIM DP Document in Open Text under Accounting Tab

Hi Pankaj,

Currently we have a requirement to change the Header Text(BKTXT) value from Invoice Date to PO number. As I am new to VIM I am not able to find where the exact mapping is done from configuration. We tried to debug and found /OTX/PF01_T_1EXT has that value. But not able to find how this table is getting updated with posting Date.

Please help.

Thanks.

Prakash Subramanian