SRM System Upgrade

Hi,

I am upgrading the SRM system landscape whcih comprises of -

SRT system [SRM Project Development]

SRQ system [SRM QA]

SRP system [SRM Production]

SRD system [SRM Development]

I will be upgrading in the following sequence only as mentioned.

Existing - SRM 7.01 sp12 on NW 7.02 sp15

UPGRADE to - SRM 7.0 Ehp 4 on NW 7.5 sp1

In SRT system I have downloaded all the relevant downloads from SOLMAN,

SUM, EhP4 softwares

I have upgrade my hostagent to 7.21 SP 11

Now when I start SUM,

http://localhost:1128/lmsl/sumabap/SRT/doc/sluigui/

I get error like -

Unable to predict the current status of process. Refresh page to retry.

Please contact the SAP support

Internal error occurred.

Error Details :

Status Code : 500

Status text : Internal Server Error

Detailed Message : Message from service : <?xml version="1.0"

encoding="UTF-8"?><SOAP-ENV:Envelope xmlns:SOAP-

ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:SOAP-

ENC="http://schemas.xmlsoap.org/soap/encoding/"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xmlns:xsd="http://www.w3.org/2001/XMLSchema"

xmlns:SAPControl="urn:SAPControl" xmlns:SAPCCMS="urn:SAPCCMS"

xmlns:SAPHostControl="urn:SAPHostControl" xmlns:SAPOscol="urn:SAPOscol"

xmlns:SAPDSR="urn:SAPDSR"><SOAP-ENV:Body><SOAP-ENV:Fault SOAP-

ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">

<faultcode>SOAP-ENV:Client</faultcode><faultstring>HTTP Error:

'Internal

Server Error'</faultstring><SOAP-ENV:Code></SOAP-ENV:Code></SOAP-

ENV:Fault></SOAP-ENV:Body></SOAP-ENV:Envelope> ,| Check the browser

console for more information.

Appreciate your help.

Thanks,

Sameer