AI-generated Key Takeaways
- 
          
CustomTargetingError.Reason is an enumeration within the https://www.google.com/apis/ads/publisher/v202508 namespace.
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This enumeration lists various reasons for custom targeting errors related to keys and values.
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The reasons cover issues such as missing keys/values, invalid names or lengths, incorrect match types, and status issues.
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Errors also relate to targeting expressions, deleted keys/values, and constraints on targeting audience segments and mapped metadata.
 
- Namespace
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https://www.google.com/apis/ads/publisher/v202508 
| Enumeration | Description | 
|---|---|
                        KEY_NOT_FOUND
                      | 
                     |
                        KEY_COUNT_TOO_LARGE
                      | 
                     |
                        KEY_NAME_DUPLICATE
                      | 
                     |
                        KEY_NAME_EMPTY
                      | 
                     |
                        KEY_NAME_INVALID_LENGTH
                      | 
                     |
                        KEY_NAME_INVALID_CHARS
                      | 
                     |
                        KEY_NAME_RESERVED
                      | 
                     |
                        KEY_DISPLAY_NAME_INVALID_LENGTH
                      | 
                     |
                        KEY_STATUS_NOT_ACTIVE
                      | 
                     |
                        VALUE_NOT_FOUND
                      | 
                     |
                        GET_VALUES_BY_STATEMENT_MUST_CONTAIN_KEY_ID
                      | 
                     |
                        VALUE_COUNT_FOR_KEY_TOO_LARGE
                      | 
                     |
                        VALUE_NAME_DUPLICATE
                      | 
                     |
                        VALUE_NAME_EMPTY
                      | 
                     |
                        VALUE_NAME_INVALID_LENGTH
                      | 
                     |
                        VALUE_NAME_INVALID_CHARS
                      | 
                     |
                        VALUE_DISPLAY_NAME_INVALID_LENGTH
                      | 
                     |
                        VALUE_MATCH_TYPE_NOT_ALLOWED
                      | 
                     |
                        VALUE_MATCH_TYPE_NOT_EXACT_FOR_PREDEFINED_KEY
                      | 
                     |
                        SUFFIX_MATCH_TYPE_NOT_ALLOWED
                      | 
                     |
                        CONTAINS_MATCH_TYPE_NOT_ALLOWED
                      | 
                     |
                        VALUE_STATUS_NOT_ACTIVE
                      | 
                     |
                        KEY_WITH_MISSING_VALUES
                      | 
                     |
                        INVALID_VALUE_FOR_KEY
                      | 
                     |
                        CANNOT_OR_DIFFERENT_KEYS
                      | 
                     |
                        INVALID_TARGETING_EXPRESSION
                      | 
                     |
                        DELETED_KEY_CANNOT_BE_USED_FOR_TARGETING
                      | 
                     |
                        DELETED_VALUE_CANNOT_BE_USED_FOR_TARGETING
                      | 
                     |
                        VIDEO_BROWSE_BY_KEY_CANNOT_BE_USED_FOR_CUSTOM_TARGETING
                      | 
                     |
                        CANNOT_DELETE_CUSTOM_KEY_USED_IN_PARTNER_ASSIGNMENT_TARGETING
                      | 
                     |
                        CANNOT_DELETE_CUSTOM_VALUE_USED_IN_PARTNER_ASSIGNMENT_TARGETING
                      | 
                     |
                        CANNOT_TARGET_AUDIENCE_SEGMENT
                      | 
                     |
                        CANNOT_TARGET_THIRD_PARTY_AUDIENCE_SEGMENT
                      | 
                     |
                        CANNOT_TARGET_INACTIVE_AUDIENCE_SEGMENT
                      | 
                     |
                        INVALID_AUDIENCE_SEGMENTS
                      | 
                     |
                        CANNOT_TARGET_MAPPED_METADATA
                      | 
                     |
                        ONLY_APPROVED_AUDIENCE_SEGMENTS_CAN_BE_TARGETED
                      | 
                     |
                        UNKNOWN
                      |