Frequently asked questions

The by square portal is the place where you manage your by square account, API access, billing, plugins, and tools for working with payment and invoice QR codes.

The portal is designed for businesses, developers, accounting teams, ERP vendors, invoicing platforms, and anyone who needs to generate or read payment and invoice QR codes.

You can create QR codes for payment and invoice data, including PAY by square, SPAYD, and INVOICE by square formats.

Not always. If you use ready-made portal tools or plugins, you may not need technical knowledge. If you want to connect by square to your own software, ERP, accounting system, or automated workflow, developer support is usually required.

Go to the by square portal and choose Create account. After registration, you can sign in and manage your account.

Use the Forgot your password? option on the login page to reset your password.

Yes. If available, you can use a one-time login code to sign in without entering a password.

Depending on your plan, you may be able to invite team members or manage users under your account settings.

Pricing depends on your selected plan, usage volume, and whether you use the portal, API, plugins, or a custom integration. You can view available plans and billing details in the Billing section of the portal. For enterprise or high-volume use, contact by square support.

You can manage billing in the Billing section of the portal after signing in.

If a free trial is available, you can start it directly from the portal or pricing page.

After you reach your plan limit, additional requests may be blocked, limited, or require a plan upgrade, depending on your subscription. Check the Billing section of the portal for your current usage, limits, and upgrade options.

You can manage your plan from the Billing section. Changes may take effect immediately or at the next billing period, depending on the plan and billing setup.

You can integrate by square by using the API for custom software, ERP, accounting, or invoicing systems, using a supported plugin if one exists for your platform, or using by square libraries or a custom implementation for advanced workflows. Developers should start with the API documentation in the portal.

Yes. by square can be integrated into ERP, invoicing, accounting, and business systems using the API, plugins, or software libraries.

You can find API documentation in the portal under the Docs or API documentation section.

The API base URL is provided in the API documentation. Use the documentation as the source of truth for the latest endpoint information.

Yes, API integrations usually require authentication using API credentials generated in the portal.

Immediately revoke or regenerate the API key in the portal and update your integration with the new credentials.

by square supports formats related to payment and invoice QR codes, including PAY by square, SPAYD, and INVOICE by square. Supported input and output formats may depend on whether you use the portal, API, plugin, or file upload feature.

If supported by your plan and integration type, you can upload or process files such as images or PDFs to read QR code data and retrieve structured information.

Offline generation may be possible through supported software libraries or custom implementation. This is usually intended for advanced or enterprise integrations.

PAY by square is a QR payment format that encodes payment details into a QR code. Customers can scan the code in a compatible banking app instead of manually entering payment details.

PAY by square is supported by participating Slovak banks and banking applications that follow the PAY by square standard. Customers can scan the QR code directly in a compatible banking app.

No. PAY by square does not process, authorize, or transfer money. It only encodes payment details into a QR code. The customer reviews and confirms the payment in their own banking app.

Yes. You can generate a payment QR code without an invoice if you have the required payment details, such as IBAN, amount, currency, payment reference, variable symbol, or other required fields.

A PAY by square QR code can include payment details such as IBAN, amount, currency, payment reference, variable symbol, constant symbol, specific symbol, payment note, and beneficiary information, depending on the use case and required fields.

Support for multiple payments depends on the format and implementation. Check the API documentation or integration guide for the supported structure.

INVOICE by square stores invoice-related accounting data in a QR code. It helps customers or accounting systems scan and import invoice information more easily.

PAY by square contains payment information for creating a bank transfer. INVOICE by square contains invoice and accounting data for processing and bookkeeping.

Yes. An invoice can contain both payment and invoice QR codes, allowing the recipient to scan payment data in a banking app and invoice data in compatible accounting software.

Yes, as long as the QR code is clear, large enough, and supported by the customer's banking or accounting app.

Plugins help connect by square functionality to existing invoicing, accounting, ERP, or e-commerce systems without building a custom API integration from scratch.

Log in to the portal, open the Plugins section, choose the plugin you need, and follow the setup instructions.

Check that your account is active, billing is up to date, the plugin is configured correctly, API credentials are valid, and the invoice contains all required payment or invoice fields.

Yes. You can use plugins for standard workflows and the API for custom automation or advanced integrations.

Common causes include low image resolution, a QR code that is too small, poor print quality, missing quiet zone around the code, damaged PDF export, or an unsupported banking or accounting app.

Use a size that remains sharp and readable in both PDF and print. Avoid scaling up a low-resolution QR image.

Yes. QR codes can be printed on invoices, but they must remain clear, sharp, and scannable.

No. A generated QR code represents encoded data. To change payment or invoice details, generate a new QR code.

Different banking or accounting apps may support different formats, fields, or validation rules. Confirm that the app supports the specific QR code type you generated.

No. Payment information is processed without storage. It is used only to generate or process the QR code and is not saved by by square.

No. by square does not move money, process card payments, authorize transfers, or act as a payment institution. PAY by square only helps prepare payment details for the customer's banking app.

No. The customer must review and confirm the payment in their banking app.

Only authorized users with access to your account should be able to see or manage API credentials. Keep API keys private and do not share them publicly.

Only include information that is necessary for payment or invoice processing. A QR code can be scanned by anyone who has access to it.

Check the source invoice, portal input, plugin configuration, or API request. QR codes are generated from the data you provide, so incorrect IBAN, amount, symbols, invoice number, or payment reference must be corrected at the source.

Check the API documentation, verify authentication, confirm all required fields are present, inspect the response code and message, and test with a minimal valid request.

Check whether the plugin or integration is enabled, the invoice contains all required fields, your account has available usage, and the selected output template includes the QR code.

Open the Billing section in the portal, check your current usage, and upgrade your plan or contact support if you need a higher limit.

For support, contact by square through the support contact listed in the portal or email the by square support team.