nina01

Thank you for your response.

I have enabled debug logging and carried out two test transactions. One from desktop (which worked correctly) and one from mobile (where the membership was not assigned).

Below are the debug logs for both transactions for comparison.

DESKTOP PAYMENT (WORKING)

[2026/03/14 02:02:45] - SUCCESS: Log file reset
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[2026/03/14 02:03:06] - SUCCESS: swpm_pp_create_subscription ajax request received for createSubscription. Button ID: 2186, On Page Button ID: swpm_paypal_button_0
[2026/03/14 02:03:06] - SUCCESS: PayPal Subscription ID: I-4L39AWR9****
[2026/03/14 02:03:14] - SUCCESS: Webhook event type: BILLING.SUBSCRIPTION.CREATED. Event summary: Subscription created
[2026/03/14 02:05:21] - SUCCESS: OnApprove ajax request received for createSubscription. On Page Button ID: swpm_paypal_button_0
[2026/03/14 02:05:22] - SUCCESS: Subscription tenure type: REGULAR, Sequence: 1, Cycles Completed: 1
[2026/03/14 02:05:22] - SUCCESS: Validation passed. Going to create/update member account and save transaction data.
[2026/03/14 02:05:22] - SUCCESS: Transaction type: pp_subscription_new, Transaction ID: 1YV97114RN*****
[2026/03/14 02:05:22] - SUCCESS: Membership payment paid for membership level ID: 2
[2026/03/14 02:05:22] - SUCCESS: swpm_handle_subsc_signup_stand_alone(). Custom value: subsc_ref=2&user_ip=46.200.206.***&swpm_id=4&reference=1YV97114RN9019920, Unique reference: 1YV97114RN9019920
[2026/03/14 02:05:22] - SUCCESS: Modifying the existing membership profile... Member ID: 4
[2026/03/14 02:05:22] - SUCCESS: This is a payment for a NEW membership level (upgrade scenario). Use todays date for Access Starts to begin the new level immediately.
[2026/03/14 02:05:22] - SUCCESS: Setting access starts date value to: 2026-03-14. Existing account status value: active
[2026/03/14 02:05:22] - SUCCESS: Updating the current membership level (3) of this member to the newly paid level (2)
[2026/03/14 02:05:22] - SUCCESS: swpm_membership_level_changed action triggered. Member ID: 4, Old Level: 3, New Level: 2
[2026/03/14 02:05:22] - SUCCESS: Retrieving user record for member ID: 4
[2026/03/14 02:05:22] - SUCCESS: Calling user role update function.
[2026/03/14 02:05:22] - SUCCESS: WP user role updated. Role: subscriber, User email: ani******@gmail.com
[2026/03/14 02:05:23] - SUCCESS: Member upgrade/update completion email successfully sent to: ani******@gmail.com
[2026/03/14 02:05:23] - SUCCESS: Saving transaction data to the database table.
[2026/03/14 02:05:23] - SUCCESS: Transaction data saved.
[2026/03/14 02:05:23] - SUCCESS: User is already logged in. The appropriate return URL is the thank you page URL.
[2026/03/14 02:05:30] - SUCCESS: Paypal Class Initiated by 173.0.81.140
[2026/03/14 02:05:30] - SUCCESS: Post string : payment_cycle=Monthly&txn_type=recurring_payment_profile_created&last_name=G&next_payment_date=03%3A00%3A00+Apr+14%2C+2026+PDT&residence_country=PL&initial_payment_amount=0.00&currency_code=USD&time_created=18%3A05%3A18+Mar+13%2C+2026+PDT&verify_sign=AmZW5j8WkflA9W.VJ-rQ2MaG7FR.A08.MLB0GIZ377xwzZShefuyRKAl&period_type=+Regular&payer_status=verified&tax=0.00&payer_email=ani*****%40gmail.com&first_name=Terry&receiver_email=nin*****%40outlook.com&payer_id=PTEG5D66P7LMC&product_type=1&shipping=0.00&amount_per_cycle=1.00&profile_status=Active&charset=windows-1250&notify_version=3.9&amount=1.00&outstanding_balance=0.00&recurring_payment_id=I-4L39AWR9*****&product_name=Billing+plan+for+Premium+membership&ipn_track_id=f48752825fc29&
[2026/03/14 02:05:30] - SUCCESS: Checking if PayPal IPN response is valid
[2026/03/14 02:05:30] - SUCCESS: Connecting to: https://www.paypal.com/cgi-bin/webscr
[2026/03/14 02:05:30] - SUCCESS: Paypal Class Initiated by 173.0.81.140
[2026/03/14 02:05:30] - SUCCESS: Post string : mc_gross=1.00&period_type=+Regular&outstanding_balance=0.00&settle_amount=2.40&next_payment_date=03%3A00%3A00+Apr+14%2C+2026+PDT&protection_eligibility=Eligible&payment_cycle=Monthly&address_status=confirmed&tax=0.00&payer_id=PTEG5D66P7LMC&address_street=***************&payment_date=18%3A05%3A19+Mar+13%2C+2026+PDT&payment_status=Completed&product_name=Billing+plan+for+Premium+membership&charset=windows-1250&recurring_payment_id=I-4L39AWR9*****&address_zip=*****&first_name=Terry&mc_fee=0.33&address_country_code=PL&exchange_rate=3.58474&address_name=Terry+G&notify_version=3.9&amount_per_cycle=1.00&settle_currency=PLN&payer_status=verified&currency_code=USD&business=ninacorvel%40outlook.com&address_country=Poland&address_city=Gdd%F1sk&verify_sign=AN6LU6kIJarTK-1WNDXOoDWtBuReAbm2cwYDu6w9YY6VyHp-g.1PPMkn&payer_email=ani*****%40gmail.com&initial_payment_amount=0.00&profile_status=Active&amount=1.00&txn_id=3K038218BK712935X&payment_type=instant&last_name=G&address_state=*******&receiver_email=nin*****%40outlook.com&payment_fee=0.33&receiver_id=5XVUGE7DQKDG6&txn_type=recurring_payment&mc_currency=USD&residence_country=PL&receipt_id=2567-8187-7062-7056&transaction_subject=Billing+plan+for+Premium+membership&payment_gross=1.00&shipping=0.00&product_type=1&time_created=18%3A05%3A18+Mar+13%2C+2026+PDT&ipn_track_id=f48752825fc29&
[2026/03/14 02:05:30] - SUCCESS: Checking if PayPal IPN response is valid
[2026/03/14 02:05:30] - SUCCESS: Connecting to: https://www.paypal.com/cgi-bin/webscr
[2026/03/14 02:05:30] - SUCCESS: IPN successfully verified.
[2026/03/14 02:05:30] - SUCCESS: Creating product Information to send.
[2026/03/14 02:05:30] - SUCCESS: Transaction Type: Buy Now/Subscribe
[2026/03/14 02:05:30] - SUCCESS: Item Number: 
[2026/03/14 02:05:30] - SUCCESS: Item Name: 
[2026/03/14 02:05:30] - SUCCESS: Item Quantity: 1
[2026/03/14 02:05:30] - SUCCESS: Item Total: 
[2026/03/14 02:05:30] - SUCCESS: Item Currency: 
[2026/03/14 02:05:30] - SUCCESS: This payment button was not created in the plugin. This is a paypal hosted button.
[2026/03/14 02:05:30] - SUCCESS: Membership payment paid for membership level ID: 
[2026/03/14 02:05:30] - FAILURE: Membership level ID is missing in the payment notification! Cannot process this notification.
[2026/03/14 02:05:30] - SUCCESS: Saving transaction data to the database table.
[2026/03/14 02:05:30] - FAILURE: Transaction ID is empty. This transaction record cannot be saved.
[2026/03/14 02:05:30] - SUCCESS: Transaction data saved.
[2026/03/14 02:05:30] - SUCCESS: Paypal class finished.

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[2026/03/14 02:05:30] - SUCCESS: IPN successfully verified.
[2026/03/14 02:05:30] - SUCCESS: Creating product Information to send.
[2026/03/14 02:05:30] - SUCCESS: Transaction Type: Buy Now/Subscribe
[2026/03/14 02:05:30] - SUCCESS: Item Number: 
[2026/03/14 02:05:30] - SUCCESS: Item Name: 
[2026/03/14 02:05:30] - SUCCESS: Item Quantity: 1
[2026/03/14 02:05:30] - SUCCESS: Item Total: 1.00
[2026/03/14 02:05:30] - SUCCESS: Item Currency: USD
[2026/03/14 02:05:30] - SUCCESS: This payment button was not created in the plugin. This is a paypal hosted button.
[2026/03/14 02:05:30] - SUCCESS: Membership payment paid for membership level ID: 
[2026/03/14 02:05:30] - FAILURE: Membership level ID is missing in the payment notification! Cannot process this notification.
[2026/03/14 02:05:30] - SUCCESS: Saving transaction data to the database table.
[2026/03/14 02:05:30] - SUCCESS: Transaction data saved.
[2026/03/14 02:05:30] - SUCCESS: Paypal class finished.

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[2026/03/14 02:05:31] - SUCCESS: Webhook event type: PAYMENT.SALE.COMPLETED. Event summary: Payment completed for $ 1.0 USD
[2026/03/14 02:05:31] - SUCCESS: Webhook event type: BILLING.SUBSCRIPTION.ACTIVATED. Event summary: Subscription activated
[2026/03/14 02:05:31] - SUCCESS: Subscription ID from resource: I-4L39AWR9RFN5. Transaction ID: 3K038218B******
[2026/03/14 02:05:31] - SUCCESS: Handling Webhook status update. Subscription ID: I-4L39AWR*****
[2026/03/14 02:05:32] - SUCCESS: Subscription tenure type: REGULAR, Sequence: 1, Cycles Completed: 1, Last Payment Time: 2026-03-14T01:05:19Z
[2026/03/14 02:05:32] - SUCCESS: Custom field data from the original subscription checkout: subsc_ref=2&user_ip=46.200.206.***&swpm_id=4&reference=1YV97114RN9019920
[2026/03/14 02:05:32] - SUCCESS: Updating the access start date if applicable for this subscription payment. Subscriber ID: I-4L39AWR9RFN5, Email: ani*****@gmail.com, Account status: active
[2026/03/14 02:05:32] - SUCCESS: Found a record in the member table. The Member ID of the account to check is: 4 Membership Level: 2
[2026/03/14 02:05:32] - SUCCESS: Updated the member profile with current date as the subscription start date.
[2026/03/14 02:05:32] - SUCCESS: Value after update - Subscriber ID: I-4L39AWR*****, Start Date: 2026-03-14
[2026/03/14 02:05:32] - SUCCESS: Executed save_txn_record() function.
[2026/03/14 02:06:30] - SUCCESS: swpm_pp_create_subscription ajax request received for createSubscription. Button ID: 2186, On Page Button ID: swpm_paypal_button_0
[2026/03/14 02:06:31] - SUCCESS: PayPal Subscription ID: I-LBSUP05*****
[2026/03/14 02:06:38] - SUCCESS: Webhook event type: BILLING.SUBSCRIPTION.CREATED. Event summary: Subscription created

MOBILE PAYMENT (FAILING)

[2026/03/14 02:31:37] - SUCCESS: swpm_pp_create_subscription ajax request received for createSubscription. Button ID: 2186, On Page Button ID: swpm_paypal_button_0
[2026/03/14 02:31:37] - SUCCESS: PayPal Subscription ID: I-B02VFEE*****
[2026/03/14 02:31:45] - SUCCESS: Webhook event type: BILLING.SUBSCRIPTION.CREATED. Event summary: Subscription created
[2026/03/14 02:33:28] - SUCCESS: Paypal Class Initiated by 173.0.81.65
[2026/03/14 02:33:28] - SUCCESS: Post string : mc_gross=1.00&period_type=+Regular&outstanding_balance=0.00&settle_amount=2.40&next_payment_date=03%3A00%3A00+Apr+14%2C+2026+PDT&protection_eligibility=Eligible&payment_cycle=Monthly&address_status=confirmed&tax=0.00&payer_id=PTEG5D66P7LMC&address_street=************&payment_date=18%3A33%3A17+Mar+13%2C+2026+PDT&payment_status=Completed&product_name=Billing+plan+for+Premium+membership&charset=windows-1250&recurring_payment_id=I-B02VFEE*****&address_zip=*****&first_name=Yakutsi&mc_fee=0.33&address_country_code=PL&exchange_rate=3.58474&address_name=Yakutsi+A&notify_version=3.9&amount_per_cycle=1.00&settle_currency=PLN&payer_status=verified&currency_code=USD&business=ninacorvel%40outlook.com&address_country=Poland&address_city=Gdd%F1sk&verify_sign=AIuok.v1Tlerzwb6C4jIMG.mSlx0ANkHzrHAdhtOnwYHoU1lXFogbVda&payer_email=001*****%40gmail.com&initial_payment_amount=0.00&profile_status=Active&amount=1.00&txn_id=56N32005TS028161U&payment_type=instant&last_name=A&address_state=********&receiver_email=nin******%40outlook.com&payment_fee=0.33&receiver_id=5XVUGE7DQKDG6&txn_type=recurring_payment&mc_currency=USD&residence_country=PL&receipt_id=2567-5280-9972-8075&transaction_subject=Billing+plan+for+Premium+membership&payment_gross=1.00&shipping=0.00&product_type=1&time_created=18%3A33%3A17+Mar+13%2C+2026+PDT&ipn_track_id=f64236906b0e0&
[2026/03/14 02:33:28] - SUCCESS: Checking if PayPal IPN response is valid
[2026/03/14 02:33:28] - SUCCESS: Connecting to: https://www.paypal.com/cgi-bin/webscr
[2026/03/14 02:33:28] - SUCCESS: IPN successfully verified.
[2026/03/14 02:33:28] - SUCCESS: Creating product Information to send.
[2026/03/14 02:33:28] - SUCCESS: Transaction Type: Buy Now/Subscribe
[2026/03/14 02:33:28] - SUCCESS: Item Number: 
[2026/03/14 02:33:28] - SUCCESS: Item Name: 
[2026/03/14 02:33:28] - SUCCESS: Item Quantity: 1
[2026/03/14 02:33:28] - SUCCESS: Item Total: 1.00
[2026/03/14 02:33:28] - SUCCESS: Item Currency: USD
[2026/03/14 02:33:28] - SUCCESS: This payment button was not created in the plugin. This is a paypal hosted button.
[2026/03/14 02:33:28] - SUCCESS: Membership payment paid for membership level ID: 
[2026/03/14 02:33:28] - FAILURE: Membership level ID is missing in the payment notification! Cannot process this notification.
[2026/03/14 02:33:28] - SUCCESS: Saving transaction data to the database table.
[2026/03/14 02:33:28] - SUCCESS: Transaction data saved.
[2026/03/14 02:33:28] - SUCCESS: Paypal class finished.

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[2026/03/14 02:33:29] - SUCCESS: Paypal Class Initiated by 173.0.81.140
[2026/03/14 02:33:29] - SUCCESS: Post string : payment_cycle=Monthly&txn_type=recurring_payment_profile_created&last_name=A&next_payment_date=03%3A00%3A00+Apr+14%2C+2026+PDT&residence_country=PL&initial_payment_amount=0.00&currency_code=USD&time_created=18%3A33%3A17+Mar+13%2C+2026+PDT&verify_sign=AnxrQ8EJW4DOkNomGVYHyj1lP6.sAFqJzrtaHwbxATWBsv4pVgFItLrd&period_type=+Regular&payer_status=verified&tax=0.00&payer_email=001*****%40gmail.com&first_name=Yakutsi&receiver_email=nin*****%40outlook.com&payer_id=PTEG5D66P7LMC&product_type=1&shipping=0.00&amount_per_cycle=1.00&profile_status=Active&charset=windows-1250&notify_version=3.9&amount=1.00&outstanding_balance=0.00&recurring_payment_id=I-B02VFEE*****&product_name=Billing+plan+for+Premium+membership&ipn_track_id=f64236906b0e0&
[2026/03/14 02:33:29] - SUCCESS: Checking if PayPal IPN response is valid
[2026/03/14 02:33:29] - SUCCESS: Connecting to: https://www.paypal.com/cgi-bin/webscr
[2026/03/14 02:33:29] - SUCCESS: Webhook event type: PAYMENT.SALE.COMPLETED. Event summary: Payment completed for $ 1.0 USD
[2026/03/14 02:33:29] - SUCCESS: IPN successfully verified.
[2026/03/14 02:33:29] - SUCCESS: Creating product Information to send.
[2026/03/14 02:33:29] - SUCCESS: Transaction Type: Buy Now/Subscribe
[2026/03/14 02:33:29] - SUCCESS: Item Number: 
[2026/03/14 02:33:29] - SUCCESS: Item Name: 
[2026/03/14 02:33:29] - SUCCESS: Item Quantity: 1
[2026/03/14 02:33:29] - SUCCESS: Item Total: 
[2026/03/14 02:33:29] - SUCCESS: Item Currency: 
[2026/03/14 02:33:29] - SUCCESS: This payment button was not created in the plugin. This is a paypal hosted button.
[2026/03/14 02:33:29] - SUCCESS: Membership payment paid for membership level ID: 
[2026/03/14 02:33:29] - FAILURE: Membership level ID is missing in the payment notification! Cannot process this notification.
[2026/03/14 02:33:29] - SUCCESS: Saving transaction data to the database table.
[2026/03/14 02:33:29] - FAILURE: Transaction ID is empty. This transaction record cannot be saved.
[2026/03/14 02:33:29] - SUCCESS: Transaction data saved.
[2026/03/14 02:33:29] - SUCCESS: Paypal class finished.

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[2026/03/14 02:33:30] - SUCCESS: Subscription ID from resource: I-B02VFEEWAVLP. Transaction ID: 56N32005TS0******
[2026/03/14 02:33:30] - SUCCESS: Webhook event type: BILLING.SUBSCRIPTION.ACTIVATED. Event summary: Subscription activated
[2026/03/14 02:33:30] - SUCCESS: Handling Webhook status update. Subscription ID: I-B02VFEE*****
[2026/03/14 02:33:30] - SUCCESS: Subscription tenure type: REGULAR, Sequence: 1, Cycles Completed: 1, Last Payment Time: 2026-03-14T01:33:17Z
[2026/03/14 02:33:30] - SUCCESS: Could not find the original subscription checkout custom field data.
[2026/03/14 02:33:30] - SUCCESS: Updating the access start date if applicable for this subscription payment. Subscriber ID: I-B02VFEEWAVLP, Email: 001*****@gmail.com, Account status: active
[2026/03/14 02:33:30] - SUCCESS: Did not find an existing record in the members table for subscriber ID: I-B02VFEE*****
[2026/03/14 02:33:30] - SUCCESS: This could be a new subscription payment for a new subscription agreement.
[2026/03/14 02:33:30] - FAILURE: Error! Could not find an existing member record for the given subscriber ID: I-B02VFEEWAVLP. This member profile may have been deleted.
[2026/03/14 02:33:30] - SUCCESS: Executed save_txn_record() function.