What is the Issue?

When you click on + Button on subgrid ,sometimes it opens new record and sometimes behaves like add existing by opening search box for existing records.

The Reason –

This behaviour of + button depends on the association between the entities. Adding new record will strictly associates records and add existing will allow you to associate records if required.

Solution-

To change the behaviour of the + button you need to change requirement level of the lookup field of the entity on which you have subgrid i.e. parent entity.

For example- you have 2 entities – AEntity and BEntity.

AEntity contains subgrid of BEntity.

On BEntity form we have lookup field- AEntityLookup

Now behaviour will be decided on requirement level of AEntityLookup field.

1. If requirement level : Business Required

Then it will behave as Add new record of BEntity.

This will also change behaviour of record level delete button as record delete.

2. If requirement level : optional/business recommended

Then it will behave as Add Existing record of BEntity.

This will also change behaviour of record level delete button as record remove.

Try it..

Happy coding…!!!