It create a new Stack but want to update the existing one

i splitted my serverless.yml file into multiple files in order to be more clear.

But when i ran sls deploy, the stack configuration changed !
And serverless try to create a new aws stack but i just want to update the existing aws stack…

before : stack/notificationRetail-prod/6c7574e0-a151-11e8-b257-50a6863366c5
after : stack/Notification-Retail/31a8ea20-a9d2-11e8-91f8-50faeb59c0d2

In this case, is there any way to force serverless to use the old stack ID ?

I found the solution, i changed the stackName by mistake…