004 - The 'Variable Symbol' field (/prehled/zamestnavatel/vs) contains a value with an incorrect length.; 112 - Invalid variable symbol.

Error: "http://schemas.cssz.cz/POJ/PVPOJ2016: 004 - The field 'Var. symbol' (/prehled/zamestnavatel/vs) contains a value with an incorrect length.; 112 - Invalid variable symbol."

Solution: Check the variable symbol on the bank account of the relevant social insurance authority (this is where the social insurance variable symbol is entered).