microflow parameter order should be of type firstModule.customer

hi,  i am beginer to the mendix platform i am working on getting started app with order and customer entities by the guide line of the link  https://docs.mendix.com/howto6/denormalize-data-to-improve-performance so i am getting error microflow parameter order should be of type firstModule.customer  attaching is screen shot of the Moduler. https://drive.google.com/open?id=0B01TOLewbWF2bEdodGQ5UTltZVk Thank you
1 answers

In general it's easier to drag the screenshot into your post, rather than in an (apparently not open-access) google drive. 

Also, if you're unfamiliar with the basics of the platform, it might be better to start with the basics: https://gettingstarted.mendixcloud.com/index3.html

As to your question; this is the error when yoou get when you place a microflow with a certain parameter (in this case 'order') in a dataview (or eventhandler) that passes a different object (in this case 'customer').

Given the example you're using, I would check if the 'after commit' microflow you've created (with the 'order' parameter) is in fact set as an event handler for 'order', and not 'customer'.