Tested the web application before deploying it to the test environment, as per checking, all the changes are now corrected especially in all the reports, but when tested downloading, all of the reports is not downloaded, modified the web application to fix the download, tested the modified application, as per testing, it is now OK, deployed the changes in pat-test then tested it again, as per checking, the updating of the business unit encountered an error, modified the application to fix it, tested it on my local. as per checking, it is now OK, deployed, and tested again, as per checking, it is now OK. tested all the reports in pat-test, as per checking, all is OK except to the downloading of the report in the ticket activity log, checked and modified the web application for fixing.