SAP Message CA_TTE590 - Business transaction on header level is invalid

System Response Tax Determination is not possible. From the CRM order Choose Conditions. Choose the icon TTE. Choose Document -> Save As. Save the document. Contact your system administrator quoting this message number and thename of the saved document. From the Simulation Transaction Choose Document -> Save As. Save the document. Contact your system administrator quoting this message number and thename of the saved document.