msnfp_amount on transaction - negative values

[Skubakoob]

Hi, the design I am currently working with requires negative values in the transaction mnsfp_amount field. They want this as it is how they plan to manage reversals and corrections. The solution is configured to allow 0 as a minimum in this field - I'm rummaging through to see if allowing negative values here is going to cause any issues or not, but does anyone happen to know if changing this will have any adverse knock-on effects? Or is there a reversals/correction element of the nfp accelerator I'm not seeing?

Thanks!