How can we manage data in a decimal Import Complex Flat File

[GAMEOVER7]

The job manages an Entry CFF, Import a filter and a release DataSet

When the job just works, it's OK, but if you put two flows in a single job I have this problem of decimal.
How can we manage data in a decimal Import Complex Flat Files, where there are different lengths.

Error message:
At field "ZORRO": When validating import/export function: APT_GFIX_Decimal::validateParameters: the decimal "text" format is variable length, and no external length is specified;
you should possibly specify an appropriate "width" property; external format: {text, padchar=32, nofix_zero, precision=12, scale=0, round=trunc_zero, ascii}.

Thank you.