Withdrawals via B2BINPAY fail with the error Return value must be of type int, null returned

Troubleshoot withdrawals via B2BINPAY failed with the error `Return value must be of type int, null returned`

Problem

A withdrawal via B2BINPAY failed with the error: B2B\TCA\PS\B2BInPay\Withdraw\BaseProvider::getB2BInPayCurrencyCode(): Return value must be of type int, null returned in the B2CORE Back Office.

Possible reasons

This issue may occur due to one or more of the following:

• PS currencies aren't properly configured for the withdrawal method in the B2CORE Back Office.

• The client’s wallet details are missing.

Solution

To fix the withdrawal issue:

1

Check the withdrawal method configuration

• In the B2CORE Back Office, navigate to System > Payout system > Payout methods.

• Find the B2BINPAY withdrawal method and click the Edit button to open its details.

• Go to the PS currencies tab.

• Make sure that for the currencies added to the tab, the correct currency codes are specified.

For valid B2BINPAY currency codes, refer to Currency codes in the product documentation.

2

Verify client wallet details

• In the B2CORE Back Office, navigate to Clients > Requests.

• Locate the withdrawal request and click the Edit button to open its details.

• Ensure that the client added a valid wallet address for the withdrawal.

Once the PS currencies are configured correctly and the client’s wallet address is provided, withdrawals will be processed without the error.