Diagnosis
You have transferred a tax item with the tax on sales/purchases codeV1 (field tax_code) to parameter accounttax. in customizing you havedefined that G/L account &V2& should be used with this tax code.

System Response
The document cannot be updated.

Procedure
For tax on sales/purchases code &V1&, use G/L account &V2& in fieldGL_ACCOUNT, or leave the field blank.