Add PlanResult, wrapping optional error message

1 files changed, 1 insertions, 1 deletions

diff --git a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/billing/BillingController.java b/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/billing/BillingController.java
index d9290b8d685..24864c03530 100644
--- a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/billing/BillingController.java
+++ b/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/billing/BillingController.java
@@ -18,7 +18,7 @@ public interface BillingController {
     /**
      * @return String containing error message if something went wrong. Empty otherwise
      */
-    Optional<String> setPlan(TenantName tenant, PlanId planId, boolean hasApplications);
+    PlanResult setPlan(TenantName tenant, PlanId planId, boolean hasApplications);
 
     Invoice.Id createInvoiceForPeriod(TenantName tenant, ZonedDateTime startTime, ZonedDateTime endTime, String agent);