// This module is included in the following assemblies:
// as_mapping-data.adoc

[id='identify-where-data-mapping-is-needed_{context}']
= Identifying where data mapping is needed

{prodname} displays warning icons to indicate where a flow 
requires data mapping. 

.Prerequisites
* You are creating or editing a flow.
* The flow contains all connections that it requires. 

.Procedure

. In the flow visualization, look for any
image:images/tutorials/WarningIcon.png[Warning] icons.

. Click the icon to see the *Data Type Mismatch* notification. 

. In the message, click *Add a data mapping step*, which displays
the data mapper. 
 
