iOS Can more than one certificates installed on one system

[mobidev]

Hi all,
Just out of curiosity, i just have a silly quest.. plz reply..

I would like to know whether , is it fine to install more than one Certificate signing requests into the keychain.
Our team had only one system but we are two different peoples.
Does it contradicts any where.

Also do the distribution certificate is neccesary while testing the application or it needs to be downloaded while app is ready to submit to appstore.

 

[firewood]

Use two different user accounts. This will keep the certificates separated in the individual user keychains.

 

[KoolStar]

I have had up to 5 in my keychain at once. I never had any problems.