diff --git a/supply/afterService.go b/supply/afterService.go
index 55fe83e..e21b5e2 100644
--- a/supply/afterService.go
+++ b/supply/afterService.go
@@ -140,11 +140,11 @@ type AfterServiceSku struct {
 }
 
 // Info  @Title 零售售后详情
-func (a *afterService) Info(ctx context.Context, afsId uint) (reply ReplyAfterServiceInfo, err error) {
+func (a *afterService) Info(ctx context.Context, afsSn string) (reply ReplyAfterServiceInfo, err error) {
 	xClient, err := client.GetClient(a)
 	if err != nil {
 		return ReplyAfterServiceInfo{}, err
 	}
-	err = xClient.Call(ctx, "Info", afsId, &reply)
+	err = xClient.Call(ctx, "Info", afsSn, &reply)
 	return
 }