Dolibarr 10 - Supplier Proposal - Access Denied for external

Hello all,

I’m having a problem with Supplier Proposals module for externals. From what I understood this module can be used by my suppliers to create their proposals so I can then check them and create the corresponding order for the best supplier price.

So, I followed these steps:
-I enabled Suppliers module and Suppliers Proposal module.
-For one supplier I created a contact and gave it a username and password
-I created a group of rights and include this user in this group of permissions

I logged in with this supplier “test” user and when I go to create a new supplier proposal I get and “Access denied” error.

I reviewed all rights, I also gave this test user absolutely all rights in the group and just to the user but I can’t get it to work.

Can anybody help me out? What am I doing wrong?

Many thanks in advance!
Regards,
Vero