Is there an equivalent to promotion code for subscriptions on Google Play?
<p>I am conducting a beta test and trying to get a much wider audience to participate testing a new subscription service I have added to my Google Play app.  I am having trouble getting volunteers outside my inner circle because subscriptions require a payment option setup on Google Play. </p>

<p>I don't blame folks for not wanting to do this.  I can say that the charge will be zero, which is how it actually works, but there are obvious trust issues with strangers/volunteers.</p>

<p>I need to create a subscription that won't cost anyone anything but Google Play won't let me create a product for zero money.</p>

<p>I thought a promotion code would be awesome until I find out that there are no promotion codes for subscriptions.  </p>

<p>How do I set up my subscription so that folks aren't asked to use their credit cards, is it possible?  </p>

<p>Technical Requirement.  We authenticate the subscription id on our back end, so we need a legit subscription ID to unlock the service.</p>