Business Process Model and Notation (BPMN) is being becoming the most used standard for business process modelling. One of the important upgrades of BPMN 2.0 with respect to BPMN 1.2 is the fact that Data Objects are now handling semantic elements. Nevertheless, BPMN doesn't enable the representation of interoperability problems in the exchanged data object, which remains a limitation when using BPMN to express interoperability issues in enterprise processes. We propose to extend the Meta-Object Facility meta-model and the XML Schema Definition of BPMN as well as the notation in order to fill this gap. The extension, named Data Interoperability, is defined using the BPMN Extension Mechanism. This new elements will allow to represent existing interoperability problems as well as interoperability concerns which have been solved. We illustrate the Data Interoperability capabilities with an example from a real industrial case.