$entity->set didn't save the content

[smartinsar]

SOLVED:
I've added save to the end of the service: $this->getEntityManager()->saveEntity($entity);

[smartinsar]

Hello,
I'm creating custom service for SalesOrder entity and trying to set custom entity (enum type).
During the code running the entity value changed, but it's not saved in database I guess.

echo $entity->get('touchstoreStatus');  

$entity->set('touchstoreStatus', 'TSS'); 

echo $entity->get('touchstoreStatus');

During the service code running echo log shows right values:
>TSE
>TSS

the full workflow run without any issue.

Can you help me with it?

I use the same entity set in my custom hook and it's work without any problem.