'Ddl_ConferencingPolicy' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value

Summary

This article provides information about Lync polices error message.

Applies To

This article applies to MachPanel v5.1.11 HF2

Error Message:  'Ddl_ConferencingPolicy' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value



Regarding the issue above, this occurs when following has happened:
  1. You create some Conference or other policies on backend.
  2. You create a service plan and include the policies which were created in step 1.
  3. You modify the backend and delete any of the selected policies (which were selected in Step 2).

To fix this it is necessary to Re-Sync All policies, but make sure that appropriate policies matching the SPLA type do exist on backend prior to performing the Sync Policy operation.  
Posted 10 Years Ago, Updated 10 Years Ago
https://kb.machsol.com/Knowledgebase/53456/DdlConferencingPolicy-has-a-SelectedValue-which-is-invalid-because-it-does-not-exist-in-the-list-of-items-Parameter-name-value