Sage crm 2019 R1 integration to sage 300 2020 Pu2

Hi has anyone experienced the following issue when creating a quote/order for sage 300 in crm opportunities. the following error is received:

An unexpected problem has occurred. Please try again or contact your administrator for assistance

All other integration works fine

Sage CRM 2019 R1

Sage 300 2020 PU2

Thanks