AGSTNR data provider SAP <> AGSTNR data provider list (&1/&2)

What causes this issue?

The employer tax number &V1& stored for the data provider in the SAP
system differs from the tax number &V2& used in the certificate for the
data provider. The employer tax number in the certificate for the data
provider is returned in the XML for the change list in the attribute
stnrDUe.

System Response

In the table for the overview of the month lists, the employer tax
number of the data provider is stored such as it is returned by the
clearing house in XML.

How to fix this error?

Maintain the correct employer tax number contained in the certificate
for the data provider.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.