public void setExternalParameters(java.util.Map<String, SsmExternalParameter> externalParameters) {
        this.externalParameters = externalParameters;
    }
<p>
Source server post migration custom action external parameters.
</p>

@param externalParameters
       Source server post migration custom action external parameters.
aws-java-sdk-mgn/src/main/java/com/amazonaws/services/mgn/model/PutSourceServerActionResult.java