Some contracts are a mere formality.

有些合同纯属走形式。

《柯林斯英汉双解大词典》

You've got the job. The interview will be a mere formality.

你已经得到了这份工作。面试不过是个形式。

《牛津词典》

He already knows he has the job so the interview is a mere formality.

他已知道得到了这个工作，所以面试仅仅是走走过场。

《牛津词典》

The workers still technically belong to the union, he said, but the yearly contract negotiations are a mere formality and the union barely participates.

FORBES: Will Right-To-Work Make Unions More Attractive In Michigan?

Defence analysts in Moscow say the Start II treaty has been dead in the water for some time and that Russia's announcement is a mere formality.

BBC: Russia abandons Start II arms treaty

But while some might see the interview as a mere formality, for others this face-to-face encounter proves to be a major stumbling block in what is already a competitive application process.

FORBES: 10 Tips for Acing the MBA Interview