Line Item Filtering 

Consider the following example that has the Purchase Order data object as the header and the Order Details data object as the line items:

If you define a line item filter at the Order ID node, the sales representative receive orders details only if the corresponding purchase orders are present in the device. Otherwise, the line items details of the Order Details node are not sent to the device. The remaining node details (Created date, Created time and Status) are sent to the device.

By creating a filter at the line items, you can avoid unnecessary data being sent to the client. This is useful, in particular, if the data is being sent to a handheld, which is limited in its memory capacity.