Supply system comprising: a supply apparatus for supplying an elongate, wire-shaped or tubular workpiece to a forming machine, wherein the supply apparatus has a receiving device for receiving a workpiece store in the form of a coil and a straightening system which is downstream of the receiving device and which has two adjustable rolling/straightening apparatuses (400-1, 400-2) which are connected one behind the other and which have differently orientated straightening planes for straightening the workpiece before introduction into the forming machine; a measurement unit for measuring residual curvatures on straightened wire-shaped or tubular straightening material which has passed through the straightening system of the supply apparatus, and for establishing measurement data which represent a residual curvature of the straightened straightening material; wherein the measurement unit is configured for a measurement which is specific to the straightening plane and which allows association of the curvature portions represented by the measurement data with the different straightening planes of the rolling/straightening apparatuses, characterized in that a cutting device for separating rod-shaped portions (110-A) of a predeterminable length from the straightening material which has passed through the straightening system is provided; the measurement unit has a measurement apparatus for receiving in each case one rod-shaped portion (110-A), which is separated from the straightening material, of the straightening material which has passed through the straightening system in a measurement position. a supply apparatus for supplying an elongate, wire-shaped or tubular workpiece to a forming machine, wherein the supply apparatus has a receiving device for receiving a workpiece store in the form of a coil and a straightening system which is downstream of the receiving device and which has two adjustable rolling/straightening apparatuses (400-1, 400-2) which are connected one behind the other and which have differently orientated straightening planes for straightening the workpiece before introduction into the forming machine; a measurement unit for measuring residual curvatures on straightened wire-shaped or tubular straightening material which has passed through the straightening system of the supply apparatus, and for establishing measurement data which represent a residual curvature of the straightened straightening material; wherein the measurement unit is configured for a measurement which is specific to the straightening plane and which allows association of the curvature portions represented by the measurement data with the different straightening planes of the rolling/straightening apparatuses, characterized in that a cutting device for separating rod-shaped portions (110-A) of a predeterminable length from the straightening material which has passed through the straightening system is provided; the measurement unit has a measurement apparatus for receiving in each case one rod-shaped portion (110-A), which is separated from the straightening material, of the straightening material which has passed through the straightening system in a measurement position.