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Van der Meer errors

Authorization errors #

One of the first steps in setting up the Van der Meer WooCommerce plugin, is authorising your Van der Meer account with WooCommerce. However, during this process you can experience errors. We have stated them below including the solution.

Code Error message Screenshot Cause Solution
Shop is not registered Screenshot 1) The permalinks are set on Plain

2) There is no valid SSL certificate problem installed. You might see an error like: cURL Error: SSL certificate problem: unable to get local issuer certificate.

3) The logs show: Response body has invalid JSON.

1) Go in your WordPress dashboard to Settings > Permalinks and configure your permalinks to anything but Plain. Try again to authorize.

2) Activate and install a SSL certificate via your hosting provider and try again.

3) This can have 2 different solutions. It is either related to the permalinks setting also or access to the WooCommerce REST API is blocked by a firewall, server or hosting provider.
3.1) Go in your WordPress dashboard to Settings > Permalinks and configure your permalinks to anything but Plain. Try again to authorize.
3.2) Check with your hosting provider what is blocking the WooCommerce REST API and make sure it will get unblocked. Try again to authorize, once this is done.

Woosa secret key is invalid Screenshot You have changed domains, database or cloned your webshop. You can find the Woosa secret key via WooCommerce > Settings > General and scroll all the way down. You will notice that this field is disabled and you can’t edit it. However, that field probably has the wrong secret key stored. The only way to solve this is by Submitting a Ticket including access to your WordPress dashboard. Our Support Desk will be able to solve this within minutes.
null Screenshot Your website doesn’t have a valid SSL certificate. Activate and install a SSL certificate via your hosting provider and try again.
401 Granting authorization has failed, please check the logs. Screenshot You are using the wrong Van der Meer FTP Username & Password to authorise Check the email you received from Van der Meer, what your correct FTP Username & Password is and try again.

Synchronization errors #

Code Error message Screenshot Cause Solution
request.headers[x-woosa-signature]: Signature value is invalid Screenshot One of the credentials to connect with our and Van der Meer its server is incorrect. Follow the next steps to solve this issue:

  • Go to WooCommerce > Settings > Advanced > REST API > Revoke the REST API key of Woosa
  • Go to Users > Search for woosa_midlayer > Delete the woosa_midlayer user
  • Go to Plugins > Search for the Woosa – Van der Meer for WooCommerce plugin > Deactivate the plugin > Reactivate the plugin
  • Go to WooCommerce > Settings > Van der Meer > Authorization > Click on the button Click to Authorise.

It might happen that after these steps you will receive a new error during the authorization: Woosa secret key invalid. Please read the solution for this error above.

  • Try again to Start the Synchronisation.

Order errors #

Code Error message Screenshot Cause Solution
Internal error Screenshot The server of the webshop was down, at the exact same time we tried to send the order to Van der Meer Follow the steps below to send to order to Van der Meer manually through WooCommerce:

  • Log in to your WordPress dashboard
  • Go to Orders
  • Select the order with the Internal error
  • Go to Bulk actions
  • Choose Van der Meer: Send to
  • Click the button Apply

The status in the Van der Meer column will change to Processing… and after a couple minutes – if all is good – to Completed.