Scenario:

Parent BC: Action Template.
Child BC: Action Language.

Now, for any record in Child BC, if the ‘Language’ field value is ‘Chinese’, then, the parent BC should become read-only.

Implementation:

For this, you should have a multivalve field defined in parent BC for Language Name in Child BC. Let’s say this MVF: Language Name

1. Create a Calculated field in Parent BC with this expression –
Field Name: Calc Language Read Only Field
Calculated Value: EXISTS ([Translated Language] = “Chinese”)

2. Create a BC User Property in Parent BC as below –
Name: BC Read Only Field
Value: Calc Language Name Read Only Field

So, whenever you change the value of Language Name in child to ‘Chinese’, your Parent BC becomes read-only.

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