diff --git a/src/components/PlansSection.tsx b/src/components/PlansSection.tsx
index c7d9967..d2d1b9b 100644
--- a/src/components/PlansSection.tsx
+++ b/src/components/PlansSection.tsx
@@ -54,11 +54,27 @@ const PlansSection = () => {
       return;
     }
 
+    const sellingPlanId =
+      shopifyProduct.node.sellingPlanGroups?.edges?.[0]?.node?.sellingPlans?.edges?.[0]?.node?.id;
+
+    if (!sellingPlanId) {
+      toast.error(
+        "Ingen abonnemangsplan hittades i Shopify. Kontrollera att Appstle-planen är kopplad till produkten."
+      );
+      return;
+    }
+
     setLoadingMethod(method);
     try {
       const data = await storefrontApiRequest(CART_CREATE_MUTATION, {
         input: {
-          lines: [{ quantity: 1, merchandiseId: variant.id }],
+          lines: [
+            {
+              quantity: 1,
+              merchandiseId: variant.id,
+              sellingPlanId,
+            },
+          ],
           attributes: [
             { key: "Antal anställda", value: String(employees) },
             { key: "Rekommenderad mängd", value: `${recommendedKg} kg/vecka` },
diff --git a/src/lib/shopify.ts b/src/lib/shopify.ts
index 9bc0a98..dc63915 100644
--- a/src/lib/shopify.ts
+++ b/src/lib/shopify.ts
@@ -43,6 +43,21 @@ export interface ShopifyProduct {
         };
       }>;
     };
+    sellingPlanGroups?: {
+      edges: Array<{
+        node: {
+          name: string;
+          sellingPlans: {
+            edges: Array<{
+              node: {
+                id: string;
+                name: string;
+              };
+            }>;
+          };
+        };
+      }>;
+    };
     options: Array<{
       name: string;
       values: string[];
@@ -125,6 +140,21 @@ export const STOREFRONT_PRODUCTS_QUERY = `
               }
             }
           }
+          sellingPlanGroups(first: 5) {
+            edges {
+              node {
+                name
+                sellingPlans(first: 10) {
+                  edges {
+                    node {
+                      id
+                      name
+                    }
+                  }
+                }
+              }
+            }
+          }
           options {
             name
             values