Checkout error product is not published for this customer

[sppzglou]

my method is that:

fun getCheckoutUrl(graphQlId: String, emit: (String?, Exception?) -> Unit) {
val input = Storefront.CheckoutCreateInput()
.setLineItemsInput(
Input.value(
listOf(
Storefront.CheckoutLineItemInput(1, ID(graphQlId))
)
)
)

    val query = Storefront.mutation { mutationQuery ->
        mutationQuery.checkoutCreate(input) { createPayloadQuery ->
            createPayloadQuery.checkout { checkoutQuery ->
                checkoutQuery.webUrl()
            }.checkoutUserErrors { userErrorQuery ->
                userErrorQuery.field().message()
            }
        }
    }

    graph.mutateGraph(query).enqueue { result ->
        if (result is GraphCallResult.Success) {
            val errors = result.response.errors
            val userErrors =
                result.response.data?.checkoutCreate?.checkoutUserErrors?.map { it.message }
            if (errors.isNotEmpty()) {
                emit(null, Exception(errors.first().message()))
            } else if (userErrors?.isNotEmpty() == true) {
                emit(null, Exception(userErrors.first()))
            } else {
                emit(result.response.data?.checkoutCreate?.checkout?.webUrl, null)
            }
        } else {
            emit(null, Exception((result as GraphCallResult.Failure).error.message))
        }
    }
}

on result.response.data?.checkoutCreate?.checkoutUserErrors I received this error "Variant the product is not published for this customer."
on the same product/variant on web shopify site the checkout works without any error.

[Varghese1987]

We are also facing the same issue. However, after some time, this error resolves itself, and we are able to check out the same product through the Mobile Buy SDK. It would be great if someone could help us identify the root cause of this issue and provide a corrective action. Thank you.