Development Guide Dual Write Prerequisites Finance and Operations apps that have build version 10.0.9 (10.0.383.20013) (Quality update) and platform update 33 or later Model-driven apps in Microsoft Dynamics 365 that have platform version 9.1.0000.11732 or later Entity Creation I’m assuming that you have already setup and configured Dual-Write in your D365 FO and Dataverse (CDS) environments. Furthermore, required entities are already created in FO and Dataverse (CDS) applications and fields are also added as per the following data type mappings. MS D365 FO Field Type MS Dataverse Field Type String Text String (Memo) Text (Multiline) Base Enum Choices Boolean Yes/No Integer / Real Decimal Date Date Only Date Time Date and Time Create Integration Key It is very important to properly create and configure table key in MS Dataverse as per F&O entity key to avoid below error during mapping. Mapping is missing for integration key - Requisition Number Following are the steps to cre