Error: The specified item was not found in the collection

When adding a new Individual in the Guests field of an Event Registrant Batch, the Error: The specified item was not found in the collection is received.
Download and install the latest patch, which contains all fixes from previous patches. If you are running an older version, download and install the latest version and then the patch. 

Environment

 2.93.2034.17
 2.94.1524, patch 9 ; 2.93.2034, patch 22

Was this article helpful?