To check if the customization function of the mini program is complete, you can follow the following steps:

與開發團隊或進行溝通：與定制小程序的開發團隊或保持及時溝通是非常重要的步。通過與開發團隊或交流，你可以了解到項目的進展情況，他們是否已經完成了所需的功能。

Communicating with the development team or developers: Maintaining timely communication with the development team or developers of customized mini programs is a crucial step. By communicating with the development team or developers, you can understand the progress of the project and whether they have completed the required functions.

參與開發過程：如果可能的話，盡量參與到小程序的開發過程中。這樣你可以第時間了解到開發進展、功能實現的具體情況，以及當中可能存在的問題。通過與開發人員的溝通和參與，你可以更好地掌握項目狀態。

Participate in the development process: If possible, try to participate in the development process of small programs. This way, you can quickly understand the development progress, specific implementation of functions, and potential issues that may exist. By communicating and participating with developers, you can better grasp the project status.

測試功能：完成開發的功能需要經過測試來驗證其是否設計要求。在此階段，你可以仔細測試每個功能點，確認它們是否按照預期工作。如果發現問題或需求變更，及時與開發團隊或進行溝通。

Testing function: The developed function needs to be tested to verify whether it meets the design requirements. At this stage, you can carefully test each function point to confirm whether they are working as expected. If problems or changes in requirements are found, communicate with the development team or developers in a timely manner.

驗收功能：當所有功能都開發完成，進行終的驗收工作，確保定制的小程序滿足你的要求和期望。在驗收過程中，你可以檢查每個功能是否都按照預期工作，并與開發團隊達成致。

Acceptance function: After all functions are developed, conduct the final acceptance work to ensure that the customized mini program meets your requirements and expectations. During the acceptance process, you can check whether each function is working as expected and reach an agreement with the development team.

使用反饋：在小程序正式上線發布，繼續觀察用戶的反饋和使用情況。如果發現某些功能存在問題或需要改進，及時向開發團隊反饋，并協商解決方案。

Usage feedback: After the mini program is officially launched and released, continue to observe user feedback and usage. If any issues or improvements are found with certain features, promptly provide feedback to the development team and negotiate solutions.

通過上述步驟，你可以了解小程序定制的功能是否已經完成，并及時跟進項目進展。。

Through the above steps, you can have a comprehensive understanding of whether the customized functions of the mini program have been completed and follow up on project progress in a timely manner..