How to give limited access on forms in Odk collect to specific user? Details are in the description

Hello everyone. I hope this post is finding you well.
My company is doing a survey in collaboration with another company. We will proceed like this.
1 Our partners will download odk collect.
2 We will give them our url so they can get the blank form.
3 then they will conduct the data collection through our form.

But in the meantime we are also conducting a survey on 5 other projects. And as you know our partners can also download the forms of this 5 other projects. but I dont want them to have acces on all the projects. i want them to have acces only in the project we are collaborating. How can i do this?

I hope I am clear.
If you have any question please ask for clarifications.

Sincerely, Andi.

Helle @Kala_Andi,

we do that and it's quite easy with Central.
You need to create 2 different App Users for the project :
https://docs.getodk.org/central-users/#managing-app-users
and then check for each one the forms he is allowed to use :
https://docs.getodk.org/central-projects/#managing-form-access

Using the right QRCode, your partner will only see the forms he is able to use.

thanx for the response. but do you know if there is any solution for this with odk aggregate. because i am using aggregate for he moment
.

As far as I remember this is not possible with aggregate, which is no more maintained :

You should consider using ODK Central instead : users and forms management are one of its greats benefits !