1# Ads Service Framework Error Codes
2
3
4> **NOTE**
5>
6> This topic describes only module-specific error codes. For details about universal error codes, see [Universal Error Codes](../errorcode-universal.md).
7
8
9## 21800001 Internal System Error
10
11**Error Message**
12
13System internal error.
14
15**Description**
16
17This error code is reported if an internal system error occurs.
18
19**Possible Causes**
20
21Failed to connect to the OAID service.
22
23**Procedure**
24
25Check whether the service is running properly.
26
27
28## 21800003 Ad Loading Failure
29
30**Error Message**
31
32Failed to load the ad request.
33
34**Description**
35
36This error code is reported if loading the ad fails.
37
38**Possible Causes**
39
40The network connection is abnormal, or an ad request parameter is incorrect.
41
42**Procedure**
43
44Check the network status, and correct the ad request parameters.
45
46
47## 21800004 Ad Display Failure
48
49**Error Message**
50
51Failed to display the ad.
52
53**Description**
54
55This error code is reported if displaying the ad fails.
56
57**Possible Causes**
58
59The network connection is abnormal.
60
61**Procedure**
62
63Check the network status.
64
65
66## 401 Incorrect Ads Request Parameter
67
68**Error Message**
69
70Invalid input parameter. Possible causes:1. Mandatory parameters are left unspecified.
712.Incorrect parameter types. 3.Parameter verification failed
72
73**Description**
74
75This error code is reported if an ads request parameter is incorrect.
76
77**Possible Causes**
78
79Ads request parameters fail the verification.
80
81**Procedure**
82
83Check whether the ads request parameters are correct.
84
85
86## 801 Ad Request Failure
87
88**Error Message**
89
90Device not support
91
92**Description**
93
94This error code is reported when the device supports the target SysCap but does not support a specific API.
95
96**Possible Causes**
97
98The device does not support the API.
99
100**Procedure**
101
102Check whether the device supports the API.
103