Authenticating User Login Details in SAP

[Former Member]

Dear Experts,

We are having a Mobile Application using Sybase where user sends his user name and password to SAP via a Custom Bapi. In this Bapi how can i Authenticate whether the users login Credentials are correct.

Please kindly let me know.

Regards

Sam

[vijaymanikandan]

Hi

In your custom BAPI use the function module 'RFC_LOGIN' and check the sy-subrc value to check the LOGON details of the user..

Regards,

Vijay V

[Former Member]

Dear Vijay,

The RFC_LOGIN is not working. whatever password we provide it is giving sy-subrc 0.

Please give some other solution.

Regards

Sam

[hendrik_brandes]

Hello Sam,

try the Function Module SUSR_LOGIN_CHECK_RFC.

Kind regards,

Hendrik

[Former Member]

Hi,

I gave my user name and password correct to SUSR_LOGIN_CHECK_RFC but its always giving wrong password.

please help.

regards

sam

[vijaymanikandan]

Hi

Add this piece of code in your Function module or create a test program and run this.

NOTE: Depending on the system your password might be case sensitive.

parameters: p_name type sy-uname,

p_bcode type XUBCODE.

CALL 'INTERNET_USER_LOGON' ID 'AUTHTYPE' FIELD 'P' "passwor

ID 'TESTMODE' FIELD SPACE

ID 'UNAME' FIELD p_name

ID 'PASSW' FIELD p_bcode.

If sy-subrc = 0.

write: 'success'.

endif.

Regards,

Vijay V

[Harsh_Bansal]

Hi,

If you will use this FM in your program, then it will work fine perfectly.

It is showing error because you didn't check the uppercase/lowercase checkbox in FM execution screen.

It automatically converts it into Uppercase hence error.

Try by checking that checkbox.

Regards,

Harsh Bansal

[Harsh_Bansal]

Hi,

You can use SUSR_LOGIN_CHECK_RFC for verifying credentials.

sy-subrc = 0 will mean correct credentials. Otherwise based on error, different exceptions like 'wrong password' will be caught.

You can put check also like if user sends wrong password 3 times then you can lock the user by using 'BAPI_USER_LOCK'

Regards,

Harsh Bansal