[[["เข้าใจง่าย","easyToUnderstand","thumb-up"],["แก้ปัญหาของฉันได้","solvedMyProblem","thumb-up"],["อื่นๆ","otherUp","thumb-up"]],[["ไม่มีข้อมูลที่ฉันต้องการ","missingTheInformationINeed","thumb-down"],["ซับซ้อนเกินไป/มีหลายขั้นตอนมากเกินไป","tooComplicatedTooManySteps","thumb-down"],["ล้าสมัย","outOfDate","thumb-down"],["ปัญหาเกี่ยวกับการแปล","translationIssue","thumb-down"],["ตัวอย่าง/ปัญหาเกี่ยวกับโค้ด","samplesCodeIssue","thumb-down"],["อื่นๆ","otherDown","thumb-down"]],["อัปเดตล่าสุด 2025-08-29 UTC"],[],[],null,["# Known issues\n\nThis page documents known developer concerns with the\nClassroom add-ons API.\n\nError messages\n--------------\n\nMost errors are covered in the descriptions of specific methods in the\n[reference documentation](/workspace/classroom/reference/rest). Some errors are [specific to add-ons](/workspace/classroom/reference/addons_errors).\n\nIf you're unable to troubleshoot an error on your own, reach out to your Google\ncontacts for support.\n\nCourseWork API compatibility\n----------------------------\n\nSee the [Create attachments from a third-party site](/workspace/classroom/add-ons/get-started/attachments-journey#create-attachments) guide to creating add-on\nattachments through a CourseWork flow.\n\nPop-up blockers\n---------------\n\nThe add-on sign-in flow can be disrupted if the end user has enabled a pop-up\nblocker. See the [manage pop-up blockers section of the frictionless sign-in\npage](/workspace/classroom/add-ons/developer-guides/frictionless-signin#manage_pop-up_blockers) for more information about how to implement the sign-in flow in the event\nthat end users enable pop-up blockers.\n\nMulti-login\n-----------\n\nMulti-login is not supported for add-ons. See the [multi-login section of the\nfrictionless sign-in page](/workspace/classroom/add-ons/developer-guides/frictionless-signin#multi-login) for more information about multi-login issues and\npossible workarounds."]]
