VAT Registration number is not determining in the invoice.

[prasadbarkam1]

VAT Registration number is not determining in the invoice since it was already maintained in the customer master in control data. Please help me to get it done this issue asap.

[Lakshmipathi]

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[alex_zheng]

There's customizing to set from which partner the VAT registration number should be taken:
Sales and Distribution -> Basic Functions -> Taxes -> Maintain Sales Tax Identification Number Determination
Field TVKO-XSTCEG. Its F1 documentation is very detailed.

The VAT no. is always determined from the tax destination country. If the VAT number is not maintained for the destination country in master data of corresponding partner function, it cannot be taken into account. As the workaround, please check SAP notes:
371764 - VAT registration number: Destination country
91109 - VAT registration number of customer disappears