Hi Mayank,
I have alternate solution for encrypting work queue data.
Let's assume that we have 10 account number of customer. As it's PII data we can't add account number into the queue directly so we need to encrypt data.
So, before adding the collection with 10 account number into the queue, we need to append one field ex. Item Key in the same collection. After that we need to run loop on the collection and take one calculation stage inside the loop and replace first 2 digits with XX and append today's date at the end an store the result in to Item Key. After completing the loop for all 10 items, add item to queue. In this way your work queue data will be encrypted. Also, make sure to update the System->Workflow ->WorkQueue K
ey Name property as Item Key.
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Kirti
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