Adding Special Field in GL Account Line Item Display

Hi Experts,

We want to add User Name as additional field in transaction code FABLL03. Configuration was done in SPRO thru the path below:

Financial Accounting (New) > General Ledger Accounting (New) > Master Data > G/L Accounts > Line Items > Define Special Fields for Line Item Display

It works fine in the Development, QA and Sandbox Client.  But when transported to Production Client, the field Username is still not included in the list of hidden fields. I have already executed RFPOSXEXTEND and BALVBUFDEL in SE38 but still the Username field is not available in FABLL03. Kindly advise what needs to be done.

Thanks.