DPD Local - what is the tracking number?

I appreciate this is similar to the ongoing tracking thread, but does anyone use DPD Local and know which is the “valid tracking number” we’re supposed to use for Amazon?
We always used the “Parcel Number: xxxx xxxx xxxx xxxx” number, but this is now coming up as “invalid”

I assume the dropdown “DPD” is acceptable, despite it being DPD Local (the blue one) as opposed to DPD (the red one) the systems and numbers are the same.