In Microsoft Dynamics GP– Go to Sales > Setup > Sales Order Processing
In the Sales Order Processing Setup window, click on the User-Defined button.
In the Sales User-Defined Fields Setup window, you can type in a label name for any of the User-Defined Entry fields and those will show on the Sales Transaction Entry window.
Open the Sales Transaction Entry window, by going to Sales > Transactions > Sales Transaction Entry. Click on Go To and select User Defined.
The User-Defined labels now reflect the changes you entered in the SOP setup window.