We have setup test server and defined all the required master data. While trying to add a PO line, system says:

Change the value of the Registration Number Sequence (BP) field.

Reason: Registration Number Sequence (BP) not found for Invoice-from Business Partner and BP Tax Country.Please enter an existing one.

Reason: Registration Number 1 not exists for Business Partner SUPP00001 and BP Tax Country

We have defined GST registration number for BP Partner but still getting same error.

I have attached screen shot if anybody can help.

Vishal