Hi @GrahamS ,
thanks for getting back to me.
A bit more context may be helpful.
For the last couple of years, I have been using the GraphiQL app with no problems. A fantastic tool for exploring the GraphQL API on Shopify and has helped my developments no end. Last week it was working fine and dandy.
This week I went in and the app wouldn’t load at all. Issues with cookies (I am using Chrome version 98.0.4758.102) so I went and deleted all of the cookies relating to the development store. Still, no joy so deleted and reinstalled the app and deleted cookies again. The app now worked.
Did a view of basic queries and all was fine. However, when I moved to mutations I started getting the error I posted above. I wondered if I had missed agreeing to certain scopes so deleted the app once more and reinstalled trying to take special note of what was being asked about scopes. It does all seem to read as if it is read-only in the scopes.
Since your post, I have tried to reinstall it again (from the link on this page https://shopify.dev/apps/tools/graphiql-admin-api), but I cannot see anything that would allow write access and it does seem to be saying that it only allows read-only access now. I am still not allowed write access.
So I’m afraid I still only have read access. Any and all suggestions are appreciated.
Best Wishes
Simon