Help for Aimeos

Hello a query and I have obtained an item
$ manager = \ Aimeos \ MShop :: create ($ context, 'customer');
$ item = $ manager-> getItem ($ id);

What I want is to be able to modify some data of the item and save it. Slaudos and thanks

how can i avoid saving the siteid when i finish a purchase


if( ( $code = $view->param( 'code' ) ) !== null )
{
$serviceCntl = \Aimeos\Controller\Frontend::create( $context, 'service' );
$orderItem = $serviceCntl->updateSync( $view->request(), $code, $orderid );
}
else
{
$orderCntl ...

Hi, thanks for your response. well but when it is the null value it does not bring me the collection address how can I bring the collection address regardless of the site?

Hello
How can I use the same user in different stores ?since registering a client in one store does not allow me to buy in the others
Greetings and thanks

how I can?
configure the base URL to the Aimeos JSON API of the instance you want to connect to in your client application
thank you