Error 404 Returned from API calls

Retired Boards Appdev Graphql Basics And Troubleshooting
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Hello, I’ve developed a custom app that among other things, talks to the Shopify REST API and downloads orders, updates inventory levels, and sends fulfillments. This app works fine with two of the three Shopify stores I’ve deployed it on. The newest store, however, returns 404 error when I try to send updates to inventory levels, or send fulfillments. Downloading of orders works with no issue. I’ve googled this problem and most of the responses to similar problems say it is a problem with Id numbers. But I am sure I am sending the correct ones, I’ve checked and re-checked them. And besides the same app works on other stores. I’ve contacted tech support a couple of times but so far, not much luck there.

If this will help to check logs and get an idea of why my requests are being rejected with 404 error, here is the X-Request-ID from a recent request: b29c2bf5-5e86-4dcc-87f5-8dff62c0a2b8.

Any help with this is very much appreciated!

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The only other check that I could think of is app permissions. I had a similar issue a couple of weeks ago and it all came down to app permission.

Settings - > Apps and Sales Channels → Develop Apps (Top right beside the shopify app store button).

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Thanks for your reply keversmcgee. That is one of the things I’ve checked.

The problem is now resolved - turned out to be the uri I was using. The store has multiple uris and the one I was using worked for downloading orders. But not updating inventory levels or sending fulfillments. I switched to use the “primary” uri and it now works. Thanks again for your response.

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