I am trying to: Need a unique dynamic serialized reference number per submission that can be parsed in the resulting template view not the post ID. We use this number to track all submissions and subsequently tie parent/child relationships. I don't understand how the suggested solution in the URL below will achieve this. Please break this down so I can quickly implement reference numbers. Thanks.
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Yes, it is true that there isn't such a feature within Toolset plugin(both CRED plugin and Types plugin), as the thread you mentioned above it needs custom PHP codes, and both threads should be able to work:
This thread is using CRED action "cred_save_data", which works only when user create the post with the specific CRED form, so it will not be able to work when you create the custom post in wordpress admin side.