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title: "sys.service_contract_message_usages (Transact-SQL) | Microsoft Docs"
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# sys.service_contract_message_usages (Transact-SQL)
[!INCLUDE[tsql-appliesto-ss2008-xxxx-xxxx-xxx_md](../../includes/tsql-appliesto-ss2008-xxxx-xxxx-xxx-md.md)]

  This catalog view contains a row per (contract, message type) pair.  
  
|Column name|Data type|Description|  
|-----------------|---------------|-----------------|  
|**service_contract_id**|**int**|Identifier of the contract using the message type. Not NULLABLE.|  
|**message_type_id**|**int**|Identifier of the message type used by the contract. Not NULLABLE.|  
|**is_sent_by_initiator**|**bit**|Message type can be sent by the conversation initiator. Not NULLABLE.|  
|**is_sent_by_target**|**bit**|Message type can be sent by the conversation target. Not NULLABLE.|  
  
## Permissions  
 [!INCLUDE[ssCatViewPerm](../../includes/sscatviewperm-md.md)] For more information, see [Metadata Visibility Configuration](../../relational-databases/security/metadata-visibility-configuration.md).