Continued to modify the web application for fixing multi-select dropdown of ticket manager, there is a problem in the design, output, and grouping, tested the modified web application, as per checking, the changes are not taking effect, checked by searching if what is the cause of changes not taking effect and see if there are other ways that can apply to fix the problem, as per checking, the cause of this is the CSS and Bootstrap, modified the web app to apply another way for fixing it, after adding CSS the function is now working properly but the value alignment, background, and box still not removed, proceed to modify the query extracting the value of resources per business unit for the ticket manager selection to extract the correct resources group by business unit, modified as well the blade for applying on it the changes made in the query, tested the modified query and blade for checking if the data is now returning correctly, as per checking, it does now. modified the javascript and CSS for fixing the design of the dropdown now that the business unit is added, tested the modified web app, as per checking, it is now Ok though the background is not removed. Tested and checked all the changes before deploying them to the test environment, as per checking, all of the changes are ok and working. Deployed the changes in the pat test and run through it before releasing it formally, as per checking, all is ok and takes effect.