To link a software provider (CSP – Contracted Service Provider) in HPOS, you need the correct 16-digit CSP number.
Parchment's CSP
8003637500097372
To link correctly, ensure you follow these steps.
If the link fails, check the below
You have correctly entered Parchment's CSP Number: 8003637500097372
Your organisation is correctly registered in HPOS (see HPI-O Registration)
You have sufficient permissions to make changes.