Why am I receiving a 406 error when registering a webhook from Java code?

[Vignesh_1]

While we are trying to register webhook from java code, we got 406 error, we had pasted the error received from shopify. Kindly check and update us

resp.getResponseCode : 406 and response ; ### Http Response: resp_code: 406 resp_msg: Not Acceptable headers: {X-Sorting-Hat-ShopId=[<<If needed we can share it>>], null=[HTTP/1.1 406 Not Acceptable], CF-RAY=[83b8b1660fd6090d-LAX], Server=[cloudflare], X-Request-ID=[6674d04d-bed0-4b7b-978b-857944ce8353], X-Shopify-Stage=[production], X-Content-Type-Options=[nosniff], Server-Timing=[cfRequestDuration;dur=118.999958, processing;dur=49], Connection=[keep-alive], X-Download-Options=[noopen], X-Permitted-Cross-Domain-Policies=[none], Date=[Tue, 26 Dec 2023 10:38:13 GMT], CF-Cache-Status=[DYNAMIC], NEL=[{"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}], Report-To=[{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=TVjUU8wmO1emG8MoLmBLp5jpI2HCyp3%2BubEYaH%2Fieyi6ndVaX%2FAm8U%2F6ORJpnqId4ZRKzmZsSXgV5oYImnrxfDNDgteq9oKLPWlKoapJzvG%2BfhY9Phdo5AZ20o6yd2ByhLq1bw0szoaF760%3D"}],"group":"cf-nel","max_age":604800}], X-Sorting-Hat-PodId=[153], Content-Security-Policy=[default-src 'self' data: blob: 'unsafe-inline' 'unsafe-eval' https://* shopify-pos://*; block-all-mixed-content; child-src 'self' https://* shopify-pos://*; connect-src 'self' wss://* https://*; frame-ancestors 'none'; img-src 'self' data: blob: https:; script-src https://cdn.shopify.com https://cdn.shopifycdn.net https://checkout.shopifycs.com https://api.stripe.com https://mpsnare.iesnare.com https://appcenter.intuit.com https://www.paypal.com https://js.braintreegateway.com https://c.paypal.com https://maps.googleapis.com https://www.google-analytics.com https://v.shopify.com 'self' 'unsafe-inline' 'unsafe-eval'; upgrade-insecure-requests; report-uri /csp-report?source%5Baction%5D=index&source%5Bapp%5D=Shopify&source%5Bcontroller%5D=admin%2Fwebhooks&source%5Bsection%5D=admin_api&source%5Buuid%5D=6674d04d-bed0-4b7b-978b-857944ce8353], alt-svc=[h3=":443"; ma=86400], X-XSS-Protection=[1; mode=block; report=/xss-report?source%5Baction%5D=index&source%5Bapp%5D=Shopify&source%5Bcontroller%5D=admin%2Fwebhooks&source%5Bsection%5D=admin_api&source%5Buuid%5D=6674d04d-bed0-4b7b-978b-857944ce8353], Content-Length=[0], Content-Type=[text/html; charset=UTF-8]}

Timestamp we hit the api:

26-12-2023

02:38:13:107 PST

Note: this is working for all of our customers, only to one customer we are facing this issue.

thanks

[Samia_Akram22]

@Vignesh_1 

Certainly! The 406 error you're encountering when trying to register a webhook from your Java code to Shopify indicates that there's an issue in how the server is processing your request.

Here are some simple steps you can take to troubleshoot this:

1. **Check Request Details:** Ensure that the information you're sending to Shopify, like the headers and data format, follows their required specifications. Mistakes in these details can cause the 406 error.

2. **Verify Webhook URL and Data:** Double-check the URL you're using for the webhook and make sure it's correct. Also, confirm that the information you're sending matches what Shopify expects for setting up a webhook.

3. **Customer-Specific Problem:** Since this issue happens only for one customer, investigate if there are any special settings or restrictions in their Shopify account that might be causing the problem. Make sure their Shopify store allows webhook integrations.

4. **Consider API Limits:** Sometimes, Shopify might have limits on how often you can use their API. Check if you've reached any limits that could be causing the error for this particular customer.

5. **Seek Help from Shopify Support:** If the problem persists, don't hesitate to reach out to Shopify's support team. They can provide guidance or check if there's anything specific to this customer's setup causing the issue.

By reviewing these aspects of your request and settings, you might pinpoint the cause of the 406 error.