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- The Id refers to what xml container should be used to (i.e. see <asset> tag in updateXML example)
- The FieldId is the same as ID. It is there for backwards compatibility
- ContainerType defines the type of the values
- RowId is only used for iterative metadata, which is a special type of metadata that contains multiple rows (e.g. comments on a video). For any other metadata type this should ALWAYS be 1.
- Values contain the actual values
- FieldId refers to the inner xml tag that also has a fieldid (i.e. see <metafield> tag in updateXML example)
- Type refers to the datatype of the value. See appendix for datatypes
- Values contains the actual values that has to be set. This is different as per datatype.
- ItemIds refers to the itemid of the item on which the data should be set.