How to apply conditional validation between DFF segments in AP_INVOICES (Type of ID / ID Number)

Hello everyone,

I’m currently configuring a Descriptive Flexfield (DFF) in the Payables module, specifically under Invoices (Flexfield Code: AP_INVOICES), and I need to implement a conditional validation between two segments:

• Type of ID (Tipo de Cédula) → Independent Value Set, with the following values:
  0 = Physical National ID
  2 = Central Government Legal Entity
  3 = National Legal Entity
  4 = Autonomous Institution
  6 = Unique Document
  7 = Foreign Company Legal ID
  9 = Passport
  12 = Diplomatic ID
• ID Number (Cédula) → Format Only Value Set, Character type, maximum length 15.

The functional requirement is as follows:
When a value is selected in Type of ID, the ID Number field must be validated based on the selected type, following these rules: