SAP Software Engineer interview questions

I am currently an employee of SAP labs. I applied for an internal transfer to SAP labs Canada. HR sent me a hackerrank coding test link. I gave the test and solved all the questions with all test cases passed. After few days, I received a mail saying my application is rejected. I contacted the HR, but I was ghosted. I did not receive any feedback. It was very unprofessional behavior. Internal candidates should be given priority but instead, I was ghosted.

There were 4 rounds . Online aptitude test , technical round 1 , technical round 2 , managerial round , HR round. Online aptitude test had technical MCQs and 2 coding programs . In technical round 1 : qus on Java , Database . technical round 2 : 3 problem sets based on data structure , exception , algorithm . Managerial round : qus on strength , weakness , interests , qus on IOT . HR round had basic HR qus.