Can I over ride yellow cells?

Trying to enter GIFI numbers but I can't enter a number in Prepaid Expenses 1484. Cell is yellow but this is not a calculated amount or a total amount.

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Hello,


Gifi Code 1484 is for prepaid expenses this field is an data entry field, if its currently yellow this may be due to the field being a zero amount.  CRA does not wish to include Gifi codes with Zero amounts.