ARN Number-GST India

Hi ,

My client is using Dynamics CRM customer master flows from CRM to SAP and based on the data from CRM we create customer master, they want to capture ARN no in SAP.

Please let me know where to maintain ,to brief about ARN no,it is the number which customer from SEZ will get from taxing authority every year.This is S/4 system.

I know we can maintain GST number under Identification.

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