RFCCallReceive Error SAP System has satus not modifiable
Symptom: Cannot see the External Metadata in BODS under SAP Applications Datastore. Below error message is shown when you click on External Metadata or try to import a table
Environment: SAP BASIS Version 7.0
SAP BW Version: 7.0
SAP BODS Version: 4.2 SP4
Cause: The datastore setting “Generate and Execute” is for development environment and needs all the necessary permissions(SAP_BW_ALL etc) . For production you need to use ABAP Execution Option Execute Preloaded which needs none of these permissions but the DataServices provided SAP functions Z_AW_TABLE_IMPORT need to be installed. SAP datastore setting ABAP Execution Option: Generate and Execute is not available when SAP system does not allow changes to its repository.
Change the ABAP Execution option to Execute Preloaded and Execute in Background(Batch) to Yes
Reference: DataServices: Role and Authorizations for SAP