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 Purpose The purpose of this page is to explain what the error:  " Msg EGW 748 not found"  means, how to diagnose this issue and resolve it.  Overview The return code 748 means that the access of registered server is denied (TP_REG_ACCESS_DENIED). This is due to gateway security settings and the rules of reginfo file defined under parameter gw/reg_info is not correct. Analysis and Resolution Firstly, please review what is the security level enabled in the instance as per the configuration of parameter gw/reg_no_conn_info. This parameter will enable special settings that should be  controlled in the configuration of reginfo file. Further information about this parameter is also available in the following link:      http://wiki.sdn.sap.com/wiki/x/jw1dDw   The SAP documentation in the following link explains how to create the file rules:              ...

I got a problem and just already found the solution this morning. I just want to share it Problem : Error occurred when accessing portal in dual-stack system -> The system is unable to interpret the SSO ticket received . Solution :Check expiration date of the ticket for Single Sign On between AS Java and ABAP. If it is expired, replace the ticket. Procedure for replacing SAPLogonTicketKeypair for SSO : Open Visual Admin . Go to server_ – Services – Key Storage . Check expiration date for ticket SAPLogonTicketKeypair . If date is expired, rename or delete this ticket. Click Create. Fill the required field . Common Name should be unique. Entry name should be the same : SAPLogonTicketKeypair. Tick Store Certificate , Use RSA algorithm. Leave other field default. Then click Generate. Export ticket SAPLogonTicketKeypair-cert as .crt format. Login to ABAP in specific client which is accessed by Portal, ex : 800 Go to tcode STRUSTSSO2 Delete old certificate. Impo...