This is root element of this document which contains name space definitions for the document elements. It's a referenced element. For detailed description, please refer referenced element doc. It's a referenced element. For detailed description, please refer referenced element doc. Description is not available. The id number of the UDA that was deleted in RMS. Provide an extension hook to customize UDARef. Provide an extension hook to localize UDARef. This type can hold a number of digits count 5.