## 13.3.4.3.4.4.3  Communication Destinations
## Use
The tables below provide an overview of the communication destinations required for the three Employee Self-Service deployment options.
## Employee Self-Service (WDA) in SAP Business Client for HTML
For this deployment option, you have to maintain RFC connections using the transaction SM59 , see also the following table 1.
Table 1: Connection Destinations for Employee Self-Service (WDA) in NWBC for HTML
| Destination                     | Delivered   | Type            | Recommended User Authorizations   | Description                                                  |
|---------------------------------|-------------|-----------------|-----------------------------------|--------------------------------------------------------------|
| SAP_ECC_HumanReso urces         | No          | ABAP connection | n/a                               | System alias for the ECC HCMsystem                           |
| SAP_ECC_HumanReso urces_HTTP    | No          | HTTP connection | n/a                               | System alias for the ECC HCMsystem                           |
| SAP_SRM                         | No          | ABAP connection | n/a                               | System alias for the SRMsystem for Pur- chasing applications |
| SAP_SRM_HTTP                    | No          | HTTP connection | n/a                               | System alias for the SRMsystem for Pur- chasing applications |
| SAP_EREC_TalentMa nagement      | No          | ABAP connection | n/a                               | System alias for the SAP E-Recruiting sys- tem               |
| SAP_EREC_TalentMa nagement_HTTP | No          | HTTP connection | n/a                               | System alias for the SAP E-Recruiting sys- tem               |
## Business Package for Employee Self-Service (WDA)
For the this deployment option, you have to maintain system aliases in the Portal System Landscape Administration, see also the following table 2.
Table 2: Connection Destinations for the Business Package for Employee Self-Service (WDA)
| Destination                | Delivered   | Type                                              | Recommended User Authorization   | Description                                                  |
|----------------------------|-------------|---------------------------------------------------|----------------------------------|--------------------------------------------------------------|
| SAP_ECC_HumanReso urces    | Yes         | Entry in Portal System Landscape Administra- tion | n/a                              | System alias for the ECC HCMsystem                           |
| SAP_SRM                    | Yes         | Entry in Portal System Landscape Administra- tion | n/a                              | System alias for the SRMsystem for Pur- chasing applications |
| SAP_EREC_TalentMa nagement | Yes         | Entry in Portal System Landscape Administra- tion | n/a                              | System alias for the SAP E-Recruiting sys- tem               |
## More Information
For the Business Package for Employee Self-Service (WDA):
- Setting Up the System Landscape
For the Business Package for Employee Self-Service:
- Setting Up the System Landscape