Here’s the full log entry if anyone is interested. ?? I spent $69 for Pro support but not a peep from them!
LOG ENTRY: Mon Aug 4th, 2014 @ precisely 6:35 pm UTC
PHP v5.4.29 :: WordPress v3.9.1 :: s2Member v140725
Memory 20.35 MB :: Real Memory 21.50 MB :: Peak Memory 20.76 MB :: Real Peak Memory 21.50 MB
xxxxx/?s2member_paypal_notify=1
User-Agent: PayPal IPN ( https://www.paypal.com/ipn )
array (
'invoice' => '53dfd25d3d70e~xxxxx',
'amount1' => '0.00',
'amount3' => '18.00',
'subscr_date' => '11:35:26 Aug 04, 2014 PDT',
'payer_id' => 'D9BWPMTCBFZLA',
'mc_amount1' => '0.00',
'mc_amount3' => '18.00',
'charset' => 'windows-1252',
'first_name' => 'Jason',
'option_selection1' => '2',
'option_selection2' => 'xxxxx',
'reattempt' => '1',
'notify_version' => '3.8',
'subscr_id' => 'I-KXE3T225GS57',
'custom' => 'xxxxx',
'payer_status' => 'verified',
'business' => 'xxxxx',
'verify_sign' => 'AJUvh1urFkZtz3b7GUx6q9a72JgAA0nSzfSGKeeO7dGkv91cb9N2RS71',
'payer_email' => 'xxxxx',
'option_name1' => 'Referencing Customer ID',
'option_name2' => 'Customer IP Address',
'payer_business_name' => 'Pasadena Web Works',
'last_name' => 'Heidecker',
'receiver_email' => 'xxxxx',
'recurring' => '18.00',
'txn_type' => 'subscr_signup',
'item_name' => '$18/mn subscription.',
'mc_currency' => 'USD',
'item_number' => '1',
'residence_country' => 'US',
'period1' => '3 D',
'period3' => '1 M',
'ipn_track_id' => '68aa7578566ce',
's2member_log' =>
array (
0 => 'IPN received on: Mon Aug 4, 2014 6:35:42 pm UTC',
1 => 's2Member POST vars verified through a POST back to PayPal.',
2 => 's2Member originating domain (<code>$_SERVER["HTTP_HOST"]</code>) validated.',
3 => 's2Member <code>txn_type</code> identified as ( <code>web_accept|subscr_signup</code> ).',
4 => 's2Member <code>txn_type</code> identified as ( <code>web_accept|subscr_signup</code> ) w/ update vars.',
5 => 'Unable to modify Subscription. The existing User ID is associated with an Administrator. Stopping here. Otherwise, an Administrator could lose access.',
),
'subscr_gateway' => 'paypal',
'subscr_baid' => 'I-KXE3T225GS57',
'subscr_cid' => 'I-KXE3T225GS57',
'eotper' => NULL,
'ccaps' => NULL,
'level' => '1',
'ip' => 'xxxxx',
'initial_term' => '3 D',
'initial' => '0.00',
'regular' => '18.00',
'regular_term' => '1 M',
)