Service Purchase Orders/Change Orders and Voucher Matching

Hello,

I am curious about voucher matching and SPOs.  Please advise me on the below situation:

1. SPO exists for $1000.

2. It is fully matched for $1000 with vouchers.

3. A buyer then changes the SPO amount to $1500 and submits the SPO to workflow for amount approval.

4. A voucher comes in for $500 that should be matched to this SPO.

Will the voucher match to the SPO prior to workflow approval?

Best regards,

Samuel Jaworski