Upgrade Sourcing 7 to 9 & facing issue due to portal user data source

Hello Experts,

We are working on upgrade Sourcing7 SP03 to 9 SP06. We have done database schema upgrade and as per Sourcing 9 requirement installed Sourcing into Netweaver7.3 SP07 portal which is pointing to upgraded Database schema.

Till that step everything worked fine for us. When we kept data source as Netweaver UME in both Portal (as default) & Sourcing directory configuration, buyer users are able to login via buyer URL. But when we set Portal Netweaver UME as ABAP we started facing issue, buyer users are not able to login via buyer URL.

PLs find below System details & steps:-

• We have upgraded the sourcing system from 7.0 SP03 to 9.0 SP06
• Installed it on Netweaver 7.3 SP07 portal which has ABAP as an UME data-source.
• Created buyer users manually in ABAP system same as Sourcing.
• But when we are trying to login its showing the Error message "Entry does not exist".

Please share view and help us to fix the error.

Rgd,

Deepak