1# Notification Subsystem Changelog
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3Compared with OpenHarmony 3.2 Release, OpenHarmony 3.2.12.2 provides more detailed error code information for the APIs of the notification subsystem.
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5## cl.notification.1 Added and Optimized API Error Code Description
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7The error code description and all error codes that may be returned by the APIs are commented out. This helps developers control the error process more accurately.
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9**Change Impact**
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11The external declaration of the JS APIs of API version 9 is affected, but the API functionalities are not affected. You can determine whether to adapt to the JS APIs.
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13**Key API/Component Changes**
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15The comments of the following modules are updated. For details, see the corresponding external API declaration and API development guide.
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17| Module                       | Major Change                                              |
18| --------------------------- | ------------------------------------------------------------ |
19| @ohos.commonEventManager    | Added the description of error codes 801, 1500007, and 1500008.                   |
20| @ohos.notificationManager   | Added the description of error codes 201, 202, 1600001, 1600002, 1600003, 1600004, 1600005, 1600007, 1600008, 1600009, 1600010, and 17700001, and adjusted the description of error code 401.|
21| @ohos.notificationSubscribe | Added the description of error codes 201, 202, 1600001, 1600002, 1600003, 1600007, 1600008, and 17700001, and adjusted the description of error code 401.|
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