"Assigned User" and "Team" issue for portal user

[Dominion]

Hello,
I'm setting the Customer portal up, and found an issue: when Customer portal user enters the portal and creates Task or Case - it is impossible to choose "Assigned User" from the list, because the list of users is empty. Also, impossible to choose the team - it says "Error 403 Access denied"
As far as I understand, these rights are regulated by the role in portal roles section. I did assign the role in "portal roles" and give "field permissions" (please, see the screenshots below).
Can't find what I have missed. Could you please give me a hint.

[yuri]

Hint: application/Espo/Resources/metadata/app/aclPortal.json
mandatory > scopeLevel

You can create the same file in custom directory.

[Dominion]

I've modified aclPortal.json with adding "assignedUsers" and "teams", but, with no effect for portal user
UPD: also, have tried to make aclPortal.json in "custom" folder

{
    "mandatory": {
        "scopeLevel": {
            "assignedUsers": {
                "read": "yes",
                "edit": "yes"
            },
            "teams": {
                "read": "yes",
                "edit": "yes"
            }

UPD: I've failed to find the solution. Still can't see the list of users to assign the task or case. The list of teams - the same :"403 Forbiden"
UPD2: I've got the result. Will test further with editing aclPortal.json in "custom" folder. Thanks!

[yuri]

You did it wrong.

"Team": {
"read": "all",
"edit": "no",
"delete": "no",
"create": "no"
}

[Dominion]

Thank you kindly! Did the same with "User" - works!

[dbmaster]

Hi,

What or where is "custom" folder... It's not clear for me where to copy the acl file... 10x

[tanya]

custom/Espo/Custom/Resources/metadata/app/aclPortal.json
Do not forget to rebuild Espo