First, it is important to communicate with your supplier and clearly explain the issue. Provide them with specific details about the components that are not meeting your design specs, and ask them to explain why the issue occurred. This can help you understand if the problem is a one-time occurrence or a recurring issue.

In the Indian industry scenario, if a supplier's components don't meet design specs, immediately communicate the issue to the supplier with specific feedback. Arrange an on-site visit or virtual inspection to assess production processes and identify discrepancies. Collaborate to develop corrective actions, such as refining quality checks or adjusting manufacturing parameters. Consider interim solutions, like minor design modifications, if feasible. Document all issues, actions, and resolutions thoroughly to ensure accountability. Reinforce expectations through regular audits and, if needed, explore alternative suppliers while ensuring alignment on quality standards to maintain project timelines and product integrity.

Here are some steps I will take to address this issue: Review the Specifications: Review and check the design specifications and the components received to ensure there is a clear discrepancy. Document the Issue: Record all the details of the non-conformance, including measurements, photographs, and any other relevant data. Contact the Supplier: Reach out to the supplier to discuss the issue. Provide them with the documented evidence and specify how the components deviate from the agreed specifications. Request a Corrective Action: Ask the supplier for a plan to correct the issue. This could involve reworking the components, providing replacements, or offering a discount. And, consider and evaluate other alternatives.

Conduct a thorough inspection: Verify the discrepancy and document it with detailed evidence to present to your supplier. Communicate with your supplier: Contact your supplier immediately to discuss the issue and explore possible solutions or alternatives. Review and adjust contracts: Ensure your supply contracts include quality assurance clauses and penalties for non-compliance to prevent future issues.

Talking from experience, dedicate a day whereby you make an unscheduled visit to the supplier, expressing your displeasure, no need for calls or emails - that only makes he or she treat it with laxity; Show your design specifications and any emails or documents showing deadlines and how their error may have put you in a bad spot in terms of delivering and being productive. That would send the message a lot better and would initiate the need for them to deliver. It is also safe to also have 3 other auxiliary suppliers, just in case the main one fails.