There are two types of checks: soft checks and hard checks. Your credit score will be unaffected by a soft credit check. Creditors used this to determine your eligibility before applying.
On the other hand, credit will be affected by a hard check because it will appear on your record when you apply for credit, and if too many in a short period of time, it may have a bad effect on your credit score and your prospects of being granted credit. This gives the impression that you are overly dependent on borrowing.