Density cannot be zero. Enter a value greater than zero as density value Message no. O3 055

This is with regards to Oil and Gas Customer and we are using IDOC's to create PO referencing the Quantity contract.

When the IDOC is processed we get the error message as below.

"

Density cannot be zero. Enter a value greater than zero as density value

Message no. O3 055

Diagnosis

The density/relative density of a liquid product cannot be zero.

Procedure

Enter a valid density/relative density. Only the API gravity can have a value of zero. This message can be customized to appear as a warning, error or information message (Trans. O591)."

Can some body please suggest on this.