56dce68f_ntlyPlus_API_v1_0_by_apiary_io__Resolution
[Http Status Code] 200 [Sently Plus Error Code] 5022 [Description] Duplicate Custom Id [Scenario] You are trying to insert an item in a list which has another item already present with the same Custom Id [Resolution] 
Please provide a different Custom Id for the item and try again.
SentlyPlus API v1.0—by apiary.io
Resolution