Paypal – Invalid Regular period?

Hello,

How do I fix this error, displayed by Paypal, as copied below?

“… Return to Merchant… Invalid Regular period. You must specify valid values for the A3, P3, and T3 parameters for a subscription…”

Things I’ve done to try and resolve this.

* Deactivated all plugins (except S2Membership) – Does not fix error.

* Change to default Twenty Eleven theme – Does not fix error.

* Deactivate all plugins (except S2Membership) AND use default Twenty Eleven theme – Still does not fix error.

* Deactivate all plugins (except S2Membership) AND use default Twenty Eleven theme AND did NOT use Paypal shortcode – Still does not fix error.

* Deactivate all plugins (except S2Membership) AND use default Twenty Eleven theme AND made SURE to use the generated shortcode – Still does not fix error.

The above activities indicate that the issue might be with the S2Member plugin.

I was considering the Pro version after the site launched, now I assume that is no longer an option, unless…

Anyone please have a fix for this?
Thanks! :)

Update: I notice that the source code of rendered pages DOES have A3, P3, T3:

<input type="hidden" name="a3" value="8.99" /><br />
<input type="hidden" name="p3" value="1" /><br />
<input type="hidden" name="t3" value="M" /><br />

So not sure why Paypal and should through this error when the plugin sends the info to Paypal.

Actually, I think this is the only thing preventing me from purchasing the Pro version. :(

I’m having this exact same issue. Were you able to resolve it and if so how?

@Alex Kiziah

No I was never able to resolve this. Support never replied either, so I just moved on and paid for another pro plugin that had better support. ;)

oh…well I just figured it out thanks to a support forum on my theme’s site.

Most ironic part is s2member uses a modified version of the them they recommend and that I’m using called inFocus from mysitemyway.com

turns out, all you have to do is put

at the start of your button shortcode and

at the end…

anyway, just thought i’d share since I struggled for hours on it like you did as well i assume

What did you switch to if you don’t mind me asking?

Please add this to your FAQ or suggest people trying it to answer to problems regarding short-code button for paypal. Could definitely save people hours of testing.

at the start of your button shortcode and

at the end…