Awesome. I'll try those settings and give you an update. Thank you again, CMX_CMGSCCC.
*Edited Update: I may have done something wrong. I successfully created the options using these variables:
Item Table name: userfield
Where name: userid
Where value: $vbulletin->userinfo['userid']
Set type: String
Set name: field13
Set value: Test
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The test Custom Profile Field (field13):
Profile Field Type: Multiple-Selection Checkbox
Field Edited By User: No
Private Field: No
---------
The option did show up in vbPlaza store. The item displayed a button for purchase. I clicked on the button and it said that the purchase was made successfully. However, there wasn't a checkbox list for me to choose from. So I went to the User CP to see if it was there and it wasn't.
I think I'm missing something. LOL.