MI70-MAM30 - more users for mobile device or user groups ?

[Former Member]

We are evaluating a MI70-MAM30 scenario.

As we foresee many hundreds on end users we are evaluating a strategy to reduce the number of the mobile devices, or to reduce the number of end-users.

1) In order to reduce the number of the mobile devices we are thinking to allows to more end-users to use the same MI client.

Do you know if there is a limit for the MI Client for the number of

users allowed to logon on it ? Any of these users will create own

proper user-Id.

We did it in the past with MI25-MAM25 for two or three end users sharing the same mobile device, but in this case they will be more and more. We do not if there is a limit.

2) In order to reduce the number of the end-users we are thinking to group them into groups or something like that.

But we expect some problem in this case as if the users A and B belong to the same group in theory they will be able to download the same data on different mobile devices; but if the data have been already downloaded for a user A, user B probabily will not found anything to download if it syncronize later of A.....

We never did it on older releases.

On the HelpOnline is not explained in detail the limit of the

multiusers mobile device usage, nor if it's possible to group the end users in some way from the syncronizazion point of view.

Any advise ?

[Former Member]

Hi,

I guess withyour idea number 1 you will run into an issue. MAM does not support several users on the same machine. See PAM for MAM and MAM Master Guide for this. MAM needs a dedicated installation per user. So the only idea would be to work with the same logon user on all devices. But this will cause other issues on the backend and sync process!

The problem is: as long as these users share the same PC it might be not an issue. If they use the same PDA yu will run into the following problem: MAM handles a complete persistence per user. Even if the same data is available for another user on this device already, it will download the data agin for this user. On PDA this will cause a problem cause data is limited. On PC it might be ok - even iti not recommended by SAP.

Your second issue is not really an issue. I had a client once who was forced by the union to have all users on the same user ID. It was a mess to maintain this for the admin, but it was not a problem to get the data down 5 times on different devices. It was an issue with a setting of MI, that hanndles the actual installation for a certain user - but this did not effect us as we where using MAM.

But why do you want to reduce the number of devices? Are you using Laptop or is it a special device (EX for example) and so it is extremely expensive?

Hope that helps a little.

Regards,

Oliver

[Former Member]

Hi OLiver, thanks for your informations, but I need some clarification

Regarding scenario 1) so more different end users on the same MI70 client I remenber (but maybe I'm wrong..) that on MI25 was possible to do logon to the MI70 with different logon.

I mean, the new-user If I remember well was creating the user and then logon with it.

It seems to me three or four users where using the same PC, with one MI70 client.

But I repeat, probabily I'm doing confusion, so please confirm if it's really possible or not.

About scenario 2) could you give some more detail or indicate to me some document about it ?

The mobile device hardware is not established yet. But the volume of data to be syncronized should not be a problem.

[Former Member]

Hi,

well, you are right and you are wrong.... lets try to clarify it a little more.....

MI does supprt several users on the same device. So you are right. You can log on several users on one device one after the other - no issue. As long as only one employee uses that device at a cetain time we are fine.

BUT!!!!!!

MAM does not really support this - SAP says: one user - one device - one logon!

Why....

And here is the point - your last sentence: data should not be an issue - it is an Issue!!!!

Lets say it like the following:

You have a PDA with 128mB available memory. The typical dataset for MAM is only 2 or 3MB plus MI and MAM and DB2e installation (another 25MB) - so - you are fine from that point. But: these 3MB are for every single user, plus the additional management data from MI/MAM/DB2e on top. Soon you end up woth 5-8MB per user real data on the device. And out of the 128MB only 50 are available. Substract the 25MB for the application, some buffers you need at runtime - then you end up with the ability to have 2, perhas 3 users on the deive. I found out that it gives problems with memory already with the second user and the sync times increase as well, cause MI has to handle more data for each sync..... At the end - several MAM users on one device - this is more tricky then it sounds in the first place.

For issue 2 and 1: because SAP says: one user - one device - there are no additional documents available. All you can do it to install two devices for the same user and use them. With MI7.0 this is not an issue at all. Sync and you see for both devices the data will flow. BUT: for example yu assign oders to a certain user. In that case all mobile users will have all orders on their devices. this is not really what yu want - you want to say that Carl is responsible for order A while Steve is responsible for order B. In your scenario - all users have same logon - on both machines they will see order A and B and no one knows what he really has to do. Beside the licensing issue you have to clarify with SAP this is an issue that you need to handle as well.

So in the moment you step away from 1 user 1 device it gets tricky. Perhaps we should have a telephone chat about it.

Regards,

Oliver

[Former Member]

Thanks Oliver for you clarification.

I understood which are the problems.

About scenario 1, the mobile device will be, probabily, laptops with some GB of RAM.

So we should not have problems if more different end-users uses the same laptop (one at time), at least from the point of view of Memory and disk space availability.

About scenario 1) I have two other questions:

a) Please do you know if are there some benchmark about the maximun number of end-users working ono the same MI70 client , using a Windows Laptop ?

b) If users A, B and C uses the same MI70 client, what happen to the data already downloaded of users B and C if user A do the 'Reset data' action ?

Also their set of data get lost or not ?

regards

[Former Member]

Hi,

as far as I know there is no benchmark available if for several users on same installation.

Unfortunately if you do a client data reset, as well the data for other users gets lost.

Regards,

Oliver

[Former Member]

Thanks again.

The fact the data of other users using the same MI70 client are deleted too if one of them push the ' reset data' button is not good...maybe It will changed in next release or there are workarounds to avoid that ?

regards

[Former Member]

Hi,

well, the intention of the button is, that any data on the client is not corret and to get ALL data agin from backend. So I guess there will be no button for "Only delete all data fro this user" even in any new version of MI. Sorry for that.

Regards,

Oliver