adding distribution channel in product master on SAP fiori app shows error

[karna_ram]

hi
while adding distribution channel to product imaster data in Fiori app we are able to add but we are not able to save the data
while entering the save button it was not showing error and also not saveing the data, just it was showing the draft.
please refer the snap

[karna_ram]

after debug with the help of ABAP we find this error

[karna_ram]

after debug with the help of ABAP we find this error -> Error info ; message refers to material ledger material HBCE2B valuation area 6910 currency type 30