Visitor Target Mapping in ACS

Hi All, 

I have created a simple workflow , which selects a record from Visitor table and sends that record to Delivery which is mapped to Visitor Target Mapping.

When i try to execute the workflow i get the below error message :

The schema for profiles specified in the transition ('head:visitor') is not compatible with the schema defined in the delivery template ('nms:visitor'). They should be identical.

I wanted to know if any one has tried visitor target mapping in ACS.

SQL code below ,show the query is reading the data from nmsVisitor.

Workflow image:

Target Mapping on delivery :

Thank You

SB