I have custom task list with calculated column (calculate created month from create column) my question is when I use create visio diagram from action menu I can't find my calculated column in "add category" list!!! any ideas?

Are you sure this is a *2007* (or earlier) question? Visio Services comes only with SPS *2010* (and this is not a 2010 forum). (Moderator pre-2010 forums)2010 Books: SPF 2010; SPS 2010; SPD 2010; InfoPath 2010; Workflow etc. 2007 Books: WSS 3.0; MOSS 2007; SPD 2007; InfoPath 2007; PerformancePoint; SSRS; Workflow Both lists also include books in French; German; Spanish with even more languages in the 2007 list.

Yes dear Mike, it's SharePoint 2007 Create visio diagram doesn't show in all list, I don't know why this custom tasks list has it!!?! anyway do u know why I can't use my claculated columns in visio diagram!?! I tried to create new claculated column but with no luck, and also I tried to add these columns to task list content type also with no luck! any suggestion will appreciate

SharePoint 2007 does not have "create visio diagram" function on the action menu. Are you using any third party solutions or customizations? Anyway, i just tested that you can see SharePoint calculated column in Visio 2007 external data. My calculated column formula is =month([Modified]), returned data type is number. I followed the steps in http://office.microsoft.com/en-us/visio-help/import-a-sharepoint-list-HA010074456.aspx