Unable to Sort one or more attributes in a PPM List View

Document ID : KB000109892
Last Modified Date : 07/08/2018
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Issue:
Unable to Sort one or more attributes in a CA Project & Portfolio Management (PPM) List View. When clicking on the header names in the portlet or object list, the columns are not sortable. 
Resolution:
If it is an attribute type that includes the below types, this is by design as these attributes aren't sortable. 
  1. Attachment - Single or Multiple files
  2. Multi Valued Lookup - Number
  3. Multi Valued Lookup- String
  4. Time-varying

For Virtual Attributes (created on sub-objects), the same rules apply for data types on the master object.

Additional Information:
See CA PPM Tech Tip: Attributes Available for Filtering and Sorting for more details on what is and is not available for sorting and filtering