WebADi error "SQL exception occurred during PL/SQL upload" while uploading data

Hi,

Ebs Version: 12.2

DB Version: 12c

I have simple requirement to create a webADI template which will take employee number and one flag and based on the data it will update the flag in data base. I created a package which have input of employee number and flag and I am calling the employee update API to update the data. I created the WebADI integrator based on thepackage/Procedure and created the layout also. There is no content as it will download a blank excel file.

I was able to create the excel document. But when I try to upload the details after entering the data, it is giving an error saying "SQL exception occurred during PL/SQL upload".