SAP Accounts Payable System API - Implementation Template

Importing Templates into Anypoint Studio

1. In Studio, click the Exchange X icon in the upper left of the taskbar.
2. Log in with your Anypoint Platform credentials.
3. Search for the template.
4. Click Open.

Running Templates in Anypoint Studio

After you import your template into Studio, follow these configuration steps to run it.

HLS SAP Accounts Payable System API Application Configuration

The application requires a few things to be configured, mainly the system API connection information. Configure them in the properties file located in the config folder.

• mule.env is the environment where the application is to be deployed. For a studio deployment, the recommended mule.env value is local.
• mule.encryptionKey is the encryption key for securing sensitive properties.
• sap.hana.url is the SAP S/4HANA URL.
• sap.hana.username is the username for connecting to SAP S/4HANA.
• sap.hana.password is the username for connecting to SAP S/4HANA.
• sap.hana.createJournalEntry.path is the service name for SAP S/4HANA SOAP API.
• sap.hana.createJournalEntry.operation is the operation name for SAP S/4HANA Cloud SOAP API.
• sap.hana.createJournalEntry.request.referenceDocumentType is the default for reference document type.
• sap.hana.createJournalEntry.request.transactionType is the default for transaction type.
• sap.hana.createJournalEntry.request.accountingDocumentType is the accounting document type. KR for vendor invoice, DG for customer credit memo etc.
• sap.hana.createJournalEntry.request.documentHeaderText is the default for document header text.
• sap.hana.createJournalEntry.request.createdBy is the default for createdBy.
• sap.hana.createJournalEntry.request.companyCode is the default for company code.
• sap.hana.createJournalEntry.request.glAccount is the default for GL Account.
• sap.hana.createJournalEntry.request.currencyCode is the default for currency code.
• sap.hana.createJournalEntry.request.itemDebitCreditCode is the default for DebitOrCreditCode for creditor item.
• sap.hana.createJournalEntry.request.documentItemText is the default for item text for creditor item.
• sap.hana.createJournalEntry.request.accountAssignmentType is the default for account assignment type.
• sap.hana.createJournalEntry.request.profitCenter is the default for profit center.
• sap.hana.createJournalEntry.request.costCenter is the default for cost center.
• sap.hana.createJournalEntry.request.referenceDocumentItem is the default for reference document item for debtor item.
• sap.hana.createJournalEntry.request.debtorItemDebitCreditCode is the default for DebitOrCreditCode for debtor item.
• sap.hana.getPayments.service is the service name for SAP S/4HANA connector.
• sap.hana.getPayments.unlistedServicesDirectory is the unlisted services directory in SAP S4 HANA Configuration.
• sap.hana.getPayments.defaultQueryParam.key is the default query param key for SAP S4 HANA Configuration.
• sap.hana.getPayments.defaultQueryParam.value is the default query param value for SAP S4 HANA Configuration.
• sap.hana.getPayments.entity is the entity type for SAP S4 HANA Query connector.
• sap.hana.getPayments.orderBy is the order by field for data returned by SAP S4 HANA Query connector.
• sap.hana.getPayments.queryParams.dateField is the SAP parameter name for ClearingDate.
• sap.hana.getPayments.queryParams.documentHeaderText is the SAP parameter name for DocumentHeaderText.
• sap.hana.getPayments.queryParams.journalEntryId is the SAP parameter name for AccountingDocument.
• sap.hana.getPayments.queryParams.glAccount is the SAP parameter name for GLAccount.
• sap.hana.getPayments.queryParams.customer is the SAP parameter name for Customer.

Please refer to the attached link on how to secure the configuration properties.

HTTPS Configuration

• https.host — sets the service host interface. It should be configured in config-<mule.env>.yaml file. (Defaults to 0.0.0.0 for all interfaces).
• https.port — sets the HTTPS service port number. It should be configured in config-<mule.env>.yaml file. (Default 8082).
• TLS Configuration - Keystore properties setup:
  • keystore.alias - sets the alias to the keystore. It should be configured in config-<mule.env>.yaml file.
  • keystore.path - sets the path to the key file. Key should be available in /src/main/resources/keystore. It should be configured in config-<mule.env>.yaml file.
  • keystore.keypass — sets keystore keypass to support HTTPS operation. It should be encrypted and configured in config-secured-<mule.env>.yaml file.
  • keystore.password— sets keystore password to support HTTPS operation. It should be encrypted and configured in config-secured-<mule.env>.yaml file.

Please refer to the attached link on how to generate the Keystore.

Constraints and Limitations

Listed below are a few of the constraints and limitations for the template:
- DataWeave mapping for Create JournalEntry has implementation for the minimum necessary fields to successfully create a journal entry in SAP S/4HANA.
- Limited set of query parameters implemented for SAP S/4HANA payments. Template can be extended to all parameters supported by SAP.

Tested and verified

This solution was developed and tested on Anypoint Studio 7.12.1 and Mule Runtime 4.4.0.

Running it

1. Right-click the template project folder.
2. Hover your mouse over 'Run as'.
3. Click Mule Application (configure).
4. Inside the dialog, select Environment and set the variable mule.env to the appropriate value (e.g., dev or local).
5. Inside the dialog, select Environment and set the variable mule.key to the property encryption key that you used to encrypt your secure properties.
6. Click Run.

Deployment instructions for CloudHub using provided scripts

Ensure the Maven profile CloudHub-DEV has been properly configured in your settings.xml file. Reference can be found by downloading the Accelerator Common Resources asset. Additional instructions are available in the Getting Started with MuleSoft Accelerators - Build Environment guide.

Update the config-<env>.yaml properties appropriately and then use one of the following scripts to deploy the application to Cloud Hub:

• packageDeploy.sh or deployOnly.sh (Mac/Linux).
• packageDeploy.cmd or deployOnly.cmd (Windows).

Test the template

• Use Advanced Rest Client or Postman to send a request over HTTPS. The template includes a Postman collection in the src/test/resources folder.