
Error :
You have entered Business Details under Section 44ADA.
Select nature of Business under Professional Category.

Solution :
Please Select the Proper Business Code according to Department.
To Check the list of these code Go to Transaction > Filing information
In Nature of Business > Click on Nature of Business Help
Once click on this will open the Nature of Business Help -
Here, Check the Lists of Codes, Code no. and Category.
In software also select List in Drop-down.
Save and then Generate the XML file.
Hope this helps.