Problem Statement :

When the special order delivery minimum is set at 100% it does not allow to Fulfill orders already paid, Showing the customer has an outstanding balance of 0.00.

Proposed Solution : 

Go to the system display setting and make the below changes . 

Path:

Administrator<<system display setting 

Set the "number decimal digit" and "Price decimal digit same" ,

For example : if we have set the "number decimal digit" up to 4 make sure that "Price decimal digit" is also same as number decimal digit

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