The various services that PSAPPSRV executes and the description of each service

Below table has the list of various services of PeopleSoft PSAPPSRV process is responsible for:

Service Name	Description
GetCertificate	Create a certificate for the client. The certificate is passed back to forth between client and server with each subsequent service request during the users session.  The certificate identifies the client to the server and shows the server that the client has been properly authenticated.
MenuList	Retrieves a list of installed menus.  For Web Client.
MgrGetObject	Get one or more managed objects (these could be records, panels, programs or any of about 50 managed object types)
MgrUpdObject	Update one managed object (these could be records, panels, programs or any of about 50 managed object types).   Not used in Tools 7.x, 8.x.
MgrClear	Synchronize Client Cache for checking for updated objects in the database.  The keys of the updated objects are returned to the client.
MgrPeek	Query whether all the objects in a panel group are in app server local memory. (Used only for display purposes - not reliable for multiple servers)
JavaMgrGetObj	MgrGetObject for Web (Java) client If the requested object is a Menu Definition, security is applied to the definition for the current user.  If the requested object is a Panel Group Definition, a menu name is also required;  if the current user has no authorization on that menu for the requested Panel Group, it is not returned.
PprLoad	Load and initialize the application data for a panel group.
PprSave	Save the application data for a panel group.
PprFullSave	Runs SaveEdits (incl. PeopleCode) and then saves the pplication data for a panel group.  Used by WebClient.
PprChangeValue	Does the panel processing necessary to change a panel fields value.
PprFieldChange	Runs the FieldChange PeopleCode for a panel field.
PprDefault	Sets the default field values for all buffers in a panel group.
PprInsertRow	Inserts a scroll row on Panel (F7)
PprDeleteRow	Deletes a scroll row on Panel (F8)
PprSearchStart	Creates a panel definition for a search dialog.  Starts a PanelProcessor for a group with that single panel, and runs Defaults (including SearchInit PC).  Optionally retrieves the definition of the INSTALLATION record and the single row of data in that table.  Optionally retrieves the definition of the PSOPTIONS record and the single row of data in that table.  For the Web Client.
PprSearchSave	Run appropriate save edits (definitional and PeopleCode) for a search dialog.  For the Web Client.
PprSecStart	Load and initialize panel processing for a secondary panel.  This includes filling the secondary buffers with data from the parent.  For the Web Client.
PprMItemSelPC	Run a piece of menu item PeopleCode.
PprPrePopupPC	Run a piece of PrePopup PeopleCode.
PsmSchedPrcs	Schedule a process scheduler job to run on the server.
PsdGetListSvc	Get a list of process definitions.
QdmGetListSvc	Get a list of available queries.
RamList	RamList is a service request that retrieves the records for a search dialogue. For example, when a client fills in partial keys (i.e. Last Name --Smith), RamList service request will be submitted to the server. Then the server will send back a list of full keys (i.e Bob Smith and Jen Smith) for the client to choose from.  This service is handled by PSQCKSRV in 3-tier situations.
RemoteCall	Performs a RemoteCall service.
SamGetParmsSvc	Gets parameters for controlling SQL Access.  The parameters include such things as DB name, DB type, etc.
SqlAccess	SQL Update transaction.  Handled by the PSSAMSRV  conversational server.
SqlQuery	An alias for SqlRequest to allow PSQRYSRV to handle SqlRequest requests.  The SQL statements are user-created via Query.
SqlRequest	Executes a single SQL statement as a complete (non-conversational) transaction.  The SQL statements are PeopleTools-generated from the source code.
StmChgPswd	Change an operators password
StmGetTimeOut	Get TimeOut Minutes parameter setting for an operator
StmGetExplain	Retrieve the explain text for an error message from the Message Catalog
OpnQryDescribe	OpenQuery interface. Describe the characteristics of a PeopleSoft query in RDM serialized form.
OpnQryExecute	OpenQuery interface.  Execute the PeopleSoft query and return the fetched rows. Rows are returned in PPR BufferList serialized form.
WamChgInst	Change an attribute of a worklist item (e.g. its SELECTED status)
Publish	Creates a publication message.
UpdatePubData	Updates an existing publication, publication contract or subscription contract.
ResubmitPub	Resubmits the publication , publication contract or subscription contract. to the Pub/ Sub system.
CancelPub	Cancels the publication , publication contract or subscription contract.
GetPub	Retrieves the requested publication from the database.
SubContract	Retrieves the requested subscription contract from the database.
PubContract	Retrieves the requested publication contract from the database.
MsgAPI	Service call for Message Agents.
PSSession	Service is called to instaniate an API on iClient to the App Server.
PSBusComp	Retrieves a Business Component API.
ICPanel	Used for server trips for PIA pages (ie. for pages created using Page Designer).
ICQuery	Used for all Query Manager server processing (but not for Qyery Viewer which is implemented in PIA pages).
ICScript	Used for all Peoplecode Iscripts.
XmlDriver	Service call that processes 3rd party/ PS publication contracts.
ICWorklist	Used with the worklist.