When you execute transaction MMSC you will receive an ABAP programming error
"SYSTEM_ABAP_ACCESS_DENIED".

Cause:

1)As per SAP Note 2340925 MMSC is Deprecated, No workaround 

2)The transaction has been marked blacklisted in S/4 HANA 1610 FPS02 onwards in future release of S4

Resolution:

Kindly note that the transaction MMSC has been whitelisted again as part of SAP Note 2518816. Please keep in mind since this transaction will no longer have any usage for MRP, as planning on storage location level no longer works, and MRP Areas should be used instead.

As substitute, the customer should use transaction MM01 to enhance materials for different storagelocations, there is no other substitute or workaround. In Fiori using Product Master Fiori Application you can assign storage location to a Material

note：

2504510

2249880

2518816

针对

sap中出现csapeditorctrl：getobject：object 30 does not exist 

针对 csapeditorctrl：getobject：object 27 does not exist 

有一个note

1124126 - WTS: "CSapEditorCtrl::GetObject: Object xx does not exist"

WTS, Citrix, dump, termination, 15, 27, 49, memory tuning, memory optimization, memory optimizer
Reason and Prerequisites
You have activated the "Citrix Memory Optimizer" on your terminal server (further information about
this tool is available under http://support.citrix.com/article/CTX106023&searchID=-1).
Unfortunately, SAP GUI for Windows and "Citrix Memory Optimizer" are not compatible with each
other. When you use the memory optimizer to optimize SAP GUI files, the problem that is described
above occurs.

Solution

You can use the following options to avoid this problem in the future:
Completely deactivate the memory optimizer.
Exclude the SAP GUI directory and all of its subdirectories from the optimization. To do this,
use the entries of the directories (for example, C:\Program Files\SAP\FrontEnd\SAP GUI for
Windows\*.*) under the key

HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\SFO\ProcessExclusionList.

If the problem has already occurred, you must use the ADSCleaner tool from Citrix to release the
SAP GUI files from the optimization (this tool is located under
http://support.citrix.com/article/CTX108542).
Alternatively, you can also reinstall the SAP GUI.