Will a backlog or retake exam affect my application if it is not mentioned explicitly in my academic documents?

It depends. If a backlog or retake exam is not mentioned in your official academic documents, it typically won't affect your application directly, since universities review the transcripts and certificates you submit.

However, if the backlog or retake led to lower grades or delayed graduation, these effects will be visible and considered. Some universities may request a detailed academic history or conduct background checks, so being transparent is important - concealing backlogs can risk your admission or visa if discovered.