When it comes to the Pop-Up Form specifically, you do not need to add the Inline Code. Inline Code is specifically for Inline Forms and allows you to choose the spot you want the form to display. You can click here to read more about Pop-Up Forms.
I hope this helps! In the meantime, if you have any further questions please feel free to reach out to us here. We are always happy to assist you in any way we can!
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