Model Driven App - Script Error

 Recently during some development, I came across one strange error. One user was getting script error when trying to access connection entity form. 

On connection entity, I added some JavaScript code to filter connection from lookup to limit only for Users and Teams. 

JavaScript Code is working fine when I tried to debug issue. 

After doing some more debugging, I realized user is using different app and that app does not have access to Team entity. 

 Once added Team entity into App, error Fixed, and script worked as designed. 

When designing Model Driven App for consider 

 1. When using JavaScript code to filter lookups to specific entity, specially customer lookup, connection entity from / to lookups, make sure entities used in filter are added in App. 

2. When using JavaScript code to redirect to specific form based on value change / option set change, make sure all forms added in App. 

3.  If entity is using Quick create form, then make sure quick create forms added in App otherwise default main form will be used to create record