How to check the ALE settings in SAP

Question

Hello everybody,
I have a question about ALE setups.
Through ALE,a lot of data flows from one SAP system to another.Hence all these various SAP systems are maintained as logical systems and the appropriate RFC destinations are in place.
1.Now,if I wish to disable some of these recipient SAP systems ,how to go about it?
2.More importantly, I have a list SAP boxes(you can say,recipient logical systems),for which I need to check if they are still active or if they have already been disabled.
Basically,my problem is that I have a number of SAP programs which have got variants maintained ,containing these SAP boxes as partner recipient numbers as part of their variant data.Now,these variants are used to run a lot of batch jobs and I need to verify whether these mentioned partner recipient numbers are still up and active or they have been disabled while the variants never got rectified.
Please let me know as how this complete check can be made.
If any clarification regarding the problem is required,please do not hesitate to ask.
Regards
Papri

Answer 1

Hello Papri,
See below a fast overview for Application Link Enabling settings to check:
1- Are logical systems with which you want to exchange data defined ?
If not, you cannot have a RFC connection to those systems.
2- Do you have RFC R/3 connections for your logical systems  (SM59) ?
If not, no transactional RFC port can be created for those RFC connections.
3- Do you have a transactional RFC port for your RFC connections (WE21) ?
If not, no parner profile can be generated for your parner type (Logical System).
4- Do you have a distribution model between systems (BD64) ?
If not, no data exchange via IDoc is possible as no partner profiles LS (WE20) are generated and no model view is distributed.
So, according to your point:
1- only one logical system can be reached by RFC connection. It is not possible for others,
2- that's why you have partner profile not being active,
3- so, RFC connection is no longer active for logical system is this situation.
Just one thing regarding those sentences from your first post:
>(...)
> Basically,my problem is that I have a number of SAP programs which have got variants maintained ,containing these SAP boxes as partner recipient numbers as part of their variant data.
>Now,these variants are used to run a lot of batch jobs and I need to verify whether these mentioned partner recipient numbers are still up and active or they have been disabled while the variants never got rectified.
> (...)
As those partners (logical systems) are not defined, you should have a DUMP for those jobs.
It is not the case ?
Regards.
Laurent.