3519364 - Custom Business Object child node cardinality - SAP S/4HANA Cloud Public Edition

how to change the cardinality for child nodes in Custom Business Objects application.

SAP S/4HANA Cloud Public Edition

Currently it is not possible to change the cardinality.

As workaround, you can consider the possibility to use a validation - Before Save for the child nodes.

For more information, please refer to 

• Adding Logic to Custom Business Objects | SAP Help Portal
• Code Samples to Write Data from Determinations or Actions to Custom Business Objects | SAP Help Portal

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