ABAP logic required for routine

Hi Experts,

My flow is masterdata -> DSO1-> Openhub1

                                    DSO1 -> Openhub2

For open Hub1 I want one field to be of constant value '1' and for openhub2 I want the field value to be constant '2' but I dont want this at transformation between DSO and openhubs but I want this setting to be between masterdata and DSO1 that for openhub1 '1' should go in a specific field and for openhub2 '2' value should go in that field.

Kindly advice if this is possible and how to achieve.

please let me know if you need more clarification.

Thanks & regards,

Mohammed.