Validate Text Field based on the value in other lookup field in the same Module.

Validate Text Field based on the value in other lookup field in the same Module.

Hi, I want to validate text input when create a new record based on another lookup field selected value in the same module.

The flow is, user will select the look up value first.

Once done, next user will key-in the text input that needed to be validated. The validation need to do some comparison with the earlier selected lookup value.