When you create a credit, it is valid to omit the patient set for the line item.

However, the same is not true for an invoice - you must set the patient.

Hence, if you create a credit and finalise it, then you cannot reverse the credit because the invoice being created fails validation because of the missing patient.

[The remedy this, I am about to use SQL to change un-finalise the tranaction. I will then use the web interface to set the patient, and then use SQL to change the status back to POSTED. Then I will reverse the credit.]

I am not sure what the real solution is.  I suspect that the 'don't have to set the patient for a credit' is a relaxation of a validation that has been needed for some data migrations from other VPMS's.

My inclination is to tighten the rules for a credit so that any credit you can create can be reversed.

[This problem was found on a 1.9 system, but will also apply to 1.8 since that was when the ability to reverse transactions was added.]

Regards, Tim G