Friends, Microsoft Dynamics D365 finance and operations have a strong batch job functionality that runs on periodic time as per user requirements. I have created one batch job that will export invent table data from the system to an excel file. Go through the given steps and get this functionality. Step 1 : Create Contract Class SPInventTableDataContractBatch [DataContractAttribute] class SPInventTableDataContractBatch { ItemType itemType; } Step 2 : Add parmItemType() method to SPInventTableDataContractBatch class and write this logic, [DataMemberAttribute] public ItemType parmItemType(ItemType _itemType = itemType) { itemType = _itemType; return itemType; } Step 3 : Create ServiceClass SPInventTableBatchService class SPInventTableBatchService extends SysOperationServiceBase { } Step 4 : Add processData() method to SP InventTableBatchService class and write this logic, [SysEntryPointAttribute(tru