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@samchou 已解決
已解決 使用@api.onchange跟用notebook
@samchou 感谢你的信息更新
@samchou 我回答过你了呀， https://www.odoo.com/documentation/15.0/developer/howtos/rdtraining/11_constraints.html?highlight=constraint
13334f32-634f-467d-ae0d-1b3b98b6832b-圖片.png sale.order的設定
3990d876-8152-47d9-bf3b-e1293301099d-圖片.png
1bd0f1e9-c8bc-41b5-9a7f-c09ce7627b48-圖片.png 我的設定
但是還是出現錯誤 ac2f9b22-a45d-493f-a6f5-a022e3eac194-圖片.png
