[SM] Applying Credits to SM Invoices

Before applying credits, delete any adjustment entries in other modules that may already be applied.

Recommended Method (Preferred):
If the originating Work Order is open—or can be reopened:

1. Create a new scope on the Work Order with a negative miscellaneous line equal to the credit amount.

2. Generate an invoice for this scope.

3. Apply the same payment from the original invoice to this new invoice in AR to link them together.

Alternative Method:
If the originating Work Order is closed and cannot be reopened:

1. Create a new Work Order.

2. Follow the steps above to apply the credit.

Note: The first method is preferred as it keeps records together and makes tracing easier. The second method works but generates additional records that may require more tracking.