inv_debug form trace

1. Enable the INV and WIP profiles for debugging.

INV: Debug Trace = Yes
INV: Debug Level = 11
INV: Debug File = "valid directory from v$parameter"
FND: Debug Log Filename = (Make sure this is null)
FND: Debug Log Enabled = Yes
FND: Debug Log Level = Statement
FND: Debug Log Module = WIP%
TP: WIP Work Order-less Completion Transaction Form = Online processing 
TP: INV Transaction processing mode = Online Processing

2.Reproduce the issue which shows the &MESSAGE error.

Click on Help -> About Oracle Application and find the AUDSID and the
value associated with it,run the following sql script:

set pagesize 500
col message_text format a99
spool WolON.txt
select message_text from fnd_log_messages where audsid=&audsid
order by log_sequence;
spool off

3. Upload the WolON.txt generated from the above sql script.

4. Upload the INV transaction log file from the directory specified in INV: Debug file profile option.