How to refresh data in a custom panel?

Summary:

Hello,

We have created a custom panel for a M:M intersection object between Opportunity and Account. We are also using a custom drawer to add the accounts to the opportunity using the intersection object.

Everything works fine but we are not able to figure out how to refresh the data on the panel itself once the account has been added (i.e., a new record is created in the intersection object). Currently, the user has to reload the page to see the changes.

We tried using the Context Helper mentioned in this post, but with no success:

Any help would be appreciated.