Sure hope this helps:
Format is Source-Action|Offer
“SPZA” (acronym for AppSource)
“INS” – Stands for Installation. This is on Azure Marketplace or AppSource whenever a customer hits the button to acquire your product.
“PLT” – Stands for Partner Led Trial. This is on AppSource whenever a customer hits the Contact me button.
“DNC” – Stands for Do Not Contact. This is on AppSource whenever a Partner who was cross listed on your app page gets requested to be contacted. We are sharing the heads up that this customer was cross listed on your app, but they do not need to be contacted.
“Create” – This is inside Azure Portal only and is whenever a customer purchases your offer to their account.
“StartTestDrive” – This is for Test Drives only and is whenever a customer starts their test drive.
These are the assigned unique identifier for you and your specific offer.