dynp/checkskip1screen is a SAP Parameter attribute which is used to control Activate/Deactivate check start transaction with "skip first screen" information. This is available within R/3 SAP systems depending on the version and release level.
Below is the standard documentation available and a few details of the attributes values .
You can use this parameter to activate the client-specific check of
whether it is permissible to start a transaction with the "Skip Initial
Screen" option. This check is only performed if the transaction is
started using a shortcut (SAP GUI for Windows), start transaction (SAP
GUI for Java), or using a URL (SAP GUI for HTML).
OFF The check is deactivated for all clients, that is, the start option
"Skip Initial Screen" is permitted in all clients.
ALL The check is activated in all clients, that is, the start option
"Skip Initial Screen" is essentially not permitted in all clients. All
transactions that are entered in client-dependent table TSTCS are
exceptions to this.
<(><<)>client1>,<(><<)>client2>,#..,<(><<)>clientN>
The check is only activated in the listed clients. It is deactivated in
all other clients.
Caution
You always need to specify the client as three digits, and there must
not be any spaces before or after the separator ",".
Incorrect
dynp/checkskip1screen=001, 002 , 003
Correct
dynp/checkskip1screen=001,002,003
See SAP Parameter Documentation for full SAP documentation for this profile parameter.