Understanding the client problem is the key. Problems generate requests for solutions. Solutions can be achieved by simple or complex products, common or uncommon. Is the product maximizing the solution? That's the question. A bond has to be stablished here. The client specific needs have to be incorporated, so trust can emerge. Involve your client in some coworking and codesign, if that's possible, so he/she can be feel as part of the proccess. And.... if you just can't fulfill these specific needs, be honest, from the start.

Recently I was faced with that demand. Our strategic supplier of that service run out in f stock due to change of their own supplier. We waited over 6 months and finally I went to their competitor to buy that product to fulfill the service requested. We were lucky that the customer was loyal. The lesson is pivot quickly even if you have a strategic alliance

In addition to the above , I would emphasis that transparency is key in communication, clarify what they looking for and advise of challenges and feasiblity. Keep client informed of progress , provide realistic timelines and offer alternative options, substitutions and or modifications .

I would start by gathering specifications to fully understand their requirements. Leverage on my network by reaching out to suppliers and industry contacts who might have access to the item. Utilize specialized online marketplaces to find hard-to-source items and consider contacting manufacturers directly for assistance or alternatives. Engaging with social media communities and forums can yield valuable recommendations from others facing similar challenges. If the product is still unavailable, explore the possibility of creating a custom solution. Stay organized throughout the process, keeping the client updated on your progress, and follow up after delivery to ensure satisfaction.