Input and Output for Merge Leads

The Input tab and the Output tab have the following fields for upserting merge leads.

Table 1. Input for Upserting Merge Leads
Input Item	Data Type	Description
ParamsMergeLeads Note: The `winningLeadKeyList` and `losingLeadKeyList` can contain only one attribute. The value of attribute name can be IDNUM, EMAIL, and SFDCLEADID.
winningLeadKey List	string	An attribute used to identify the winning lead. The attribute is associated with a name, a type, and a value. Note: Only some specific values are valid for this field, see the Marketo documentation for details.
losingLeadKey List	string	An attribute used to identify the losing leads. The attribute is associated with a name, a type, and a value.

Table 2. Output for Upserting Merge Leads
Output Item	Data Type	Description
SuccessMergeLeads/result/mergeStatus
winningLeadId	integer	The ID of the winning lead. The returned value can be null.
losingLeadIdList	integer	The ID of the losing leads. The returned value can be null.
status	string	The status of the operation.
error	string	The error message. The returned value can be null.