Here’s an example real-world eForm call. Note a few things are really important, and apply to most snippet calls:
1) Since it’s a form that needs further processing, it’s got to be called uncached:
[! (vs. the regular [[)
2) Since it needs parameters, you put a question mark immediately after the snippet name: [!eform
? ...
3) The parameters are wrapped in backtick marks. On US English Keyboards that’s is likely the key immediately to the left of the top-row 1-key:
` (it’s NOT a single-quote mark)
[!eForm?formid=`echoform` &tpl=`form.cart.payment` &noemail=`1` &gotoid=`181`!]