It depends on where the scratch is.
- If the scratches are on the trace, it affects PCB working. Check whether your circuits are broken.
- If the scratches are on the coppering area, it also affects PCB working.
- If it happens in other places, there is few bad effects to PCB working.
Contact your supplier and give a quality assurance warning. Unstable product quality is a serious factor for your business, though you just sell in the retail market. It is advisable to find a supplier with ISO9001 management system as a backup supplier against the one you are cooperating with now.
Read More: ISO13485