Click 
alongside the Supplier Logo field to open the “Upload File” window.
Enter caption for the logo in the File ID field.
Select the file that contains the logo image.
Click “Upload” pushbutton to save file.
To upload supplier logo
Click alongside the Supplier Logo field to open the “Upload File” window.
Enter caption for the logo in the File ID field.
Select the file that contains the logo image.
Click “Upload” pushbutton to save file.
The caption appears as you mouse over the logo. (If you have not specified a caption for the logo, the file name is displayed as caption.)