Payer – Introduction


Payer simplifies payments between companies. Their service for e-commerce helps create an amazing buying experience, that creates happy customers and increased revenue.

Payer offers a wide range of different payment solutions that you can easily use in your store.

Account with Payer

To use the Payer plugin you need an account with Payer. This will provide you with the different keys that you need for the plugin to work correctly. You can contact Payer and get more information about this here at


The plugin itself has no limitations regarding currency.
However, please note that there can be limitations in the agreement you have with your payment provider.
When it comes to questions regarding supported currencies you should always talk to your payment provider. The exception is when the plugin in fact do have limitations.

You can read more about this at the Payer website.

Required WooCommerce settings

  • Make sure that you have enabled pretty permalinks in your WordPress installation. Otherwise callbacks from Payer back to your store won’t work and orders will not be updated with the correct order status/information.
  • Make sure that the WooCommerce callback API works. If you enter the following address in a browser – – you should see a white page with -1 printed in the top of the page. If you get a 404 error message and have a multilingual plugin like Polylang installed, make sure to check the box Hide URL language information for default language in URL modification settings.

  • To get the order total to match between WooCommerce and Payer you need to configure WooCommerce to display prices with 2 decimals. More information about displaying of prices and how it can cause rounding issues can be found in this article.


  1. Login to your WordPress Admin page. Navigate to → PluginsAdd new in the lefthand menu.
  2. Press Upload Plugin, and select the zip-file from your computer.
  3. Then press Ok and finally the button Install now.


The following settings fields are all available for each Payer payment method (card, bank, invoice, installment, Swish, Einvoice and Masterpass). We use Card payment as an example here:

  1. Go to: WooCommerce > Settings > Checkout > Payer Card
  2. Enable Payer card payments by checking the Enable Payer Card checkbox.
  3. The Title and Description fields controls what the customer sees during checkout.
  4. The Icon URL field can be used to replace the default Payer icon.

The following fields should be entered in the Payer Card section but they do apply for all payment methods:

  1. Enter the Agent ID, Soap ID, Soap Password, Post key 1, Post key 2 & Rest key that you have received from Payer.
  2. Test mode – check this box if you have a test account and want to make purchases against Payers test server environment.
  3. Debug – check this box to log events for debugging.

MasterPass Campaign

Attn. Contact Payer first before using this setting. The discount is automatically added to orders made with MasterPass if its added, and you are responsible for the cost of the discounts added if you use the setting.

Link to Swedish information about the campaign.

Under the MasterPass settings there is an option to take part in a MasterPass Campaign. For this you need to enter the discount amount for the campaign and check the checkbox for the campaign. The amount entered is the discount amount without tax. Make sure that you have been aproved by Payer before enabling this setting!


We now support recurring payments through WooCommerce Subscriptions.

To activate this feature you need to:

  • Set up an agreement with Payer about taking subscription payments.
  • Purchase and configure the WooCommerce Subscriptions extension.
  • Have Card payments or Direct invoice payments enabled in your store through Payer.

Payer only supports Card payments and Direct invoice payments for recurring payments.


If the checkout is not showing after you have followed all the instructions, and you don’t see any error messages in the checkout page, we recommend that you temporarily enable WP_DEBUG. You can find more information about that here.

Payer integrates with the normal checkout of WooCommerce and should work with most other plugins with few issues.

We have tested the plugin with the following themes:

  • Storefront
  • Flatsome

If your theme is not on this list we recommend that you try the plugin first on a test store, and not in a live environment. If you need changes to be done then we recommend that you contact the developers behind your store.

We at Krokedil do not offer help with adapting your theme or plugin within regular support.

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