SAP Message >0016 - Formal error in table &1: Item &2 with two tax codes

Diagnosis Both the tax code for tax on sales/purchases (MWSK) and the code forother taxes (STEKZ) are specified in a G/L item (FKKOPK) Steuern(STEKZ). However, you can enter only one of these two tax codes. System Response Error message causing processing to be stopped. Procedure INCLUDE NA_SYSADMIN1 OBJECT DOKU ID TX Procedure for System Administration INCLUDE FICA_NA_OSS OBJECT DOKU ID TX