we are using the Admin-API for writing shop policies. The input field ShopPolicyInput.body has a maximum size of 512kb according to that documentation: https://shopify.dev/api/admin-graphql/2021-07/mutations/shopPolicyUpdate
However when sending a shopPolicyUpdate request with a body of about 55000 characters, we receive an error from Shopify saying "query param length is too long". When sending shorter texts everything works as expected (I haven't tried to find out the exact limit yet).
So imho this is an API bug as the documentation allowes those lenghts explicitly.
Business background: In Germany we have privacy policies that need to be up to around 100000 characters, so these are not writable via the API (but they are via the Shopify admin UI).
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