If you learn that temu's first order is temporarily unavailable when you purchase the product, you can consider the following solutions:

1. Wait for the product to be available: You can choose to wait for a while to see if you can wait for the product to be available. Sometimes the supplier may restock the product at a certain time in the future. You can consult temu customer service for more information about the product's availability and decide whether to wait based on their advice.

2. Choose other products: If you are sure that the required product has a long or uncertain availability, you can consider choosing other similar products or brands. Finding alternative options may save you time and energy.

3. Cancel the order: If you don't have enough patience to wait for the availability or have other urgent needs, you can consider contacting temu customer service to cancel the order. They will guide you on how to cancel the order and refund the money.

4. Seek help: If you are confused or dissatisfied with the situation that temu's first order is unavailable, you can directly contact temu customer service for help. They will provide more detailed explanations and assist you in dealing with related issues.

Please remember that the above suggestions are for reference only, and the specific solutions may vary depending on the product and platform policies. Keep in touch with temu customer service and seek their advice and help will be the best way to solve the problem.