Hi Vikas,
If your B1 version is not very old, then you can as long as the menu name you want to change is under the Document Number settings.
SAP Business One lets you modify the menu wording for sales, purchasing and inventory documents. You may do this, for example, to reflect common terminology in specific industries. To specify a new menu name, make an entry i.n this column.
Changing the menu name is only possible if the checkbox Permit More than One Document Type per Series on the Basic Initialization tab in the Company Details window is not selected
Thanks,
Gordon