When using SharePoint Designer 2013 to create External Content Types, you may find yourself getting a message similiar to the following:
The Business Data Connectivity Metadata Store is currently unavailable.
First make sure that you have the Business Data Connectivity Service Application created in Central Admin:
The Business Data Connectivity Metadata Store is currently unavailable.
First make sure that you have the Business Data Connectivity Service Application created in Central Admin:
Though the business data connectivity service application has been created and you are getting same kind of issue.
Here is the Solution
Create a new business Data Connectivity service application and provide the permissions required, then you are good to go
Return to Sharepoint Designer 2013 and the External Content Types displayed
Clicking on New External Content Type no longer will give you an error.