easyHtmlEmail

Easy to Genrate & Maintain Email in SAP (ABAP + HTML/CSS)

Generating & Maintaing E-mail through ABAP is always dirty code while buildling email body with text-elements/message class.
Even simple plain text Email results in lots of irrelevant code in ABAP, so generating modern e-mails (HTML/CSS/images) in abap can be a nightmare for anyone.

easyHtmlEmail provides a helper class Zcl_easy_email which helps the ABAP developer to consume HTML template to build email.
The static part of email will no longer be handled by ABAP code, developer only need to worry about dynamic values in email.
easyHtmlEmail Blog Post

Note: Zcl_easy_email is Built on Top of Function Module WWW_HTML_MERGER, so Pros & Cons are inherited. Refer WWW_HTML_MERGER

Features:

• Build Modern e-mails
• Static & dynamic content segregation
• Pesentation & logic segregation
• Avoid irrelevent ABAP code resulting clean code.
• Easy maintainace & translation of emails
• Resueability
• Easy Combining of master & child email templates

Changes:

CHANGELOG.md

Steps:

1. Build email Template and upload in T-code SMW0.
   
   Template must contain Placeholders for dynamic values (highlighted in yellow are placeholders).
   

Demo HTML templates is taken from BBBootstrap public e-mail templates

1. Maintain config in Table ZMAIL_TEMP_CONF.(Optional)

2. Create instance of Zcl_easy_email and set template.

        DATA : go_EASY_EMAIL TYPE REF TO ZCL_EASY_EMAIL.
        CREATE OBJECT go_EASY_EMAIL .
   
        go_EASY_EMAIL->set_subject(
            title = 'mail subject '
            ).
   
        go_EASY_EMAIL->set_template(
            p_template       = 'ZTESTEMAIL' 
            p_mastertemplate = 'ZTESTEMAILMASTER'
            ).
   

3. Pass in Placeholder & dynamic value pairs.

        go_EASY_EMAIL->replace_placeholder(
            EXPORTING
            placeholder_name = '!VBELN!'
            replacement_type = 'R'          "replace placeholder with single value
            single_value     = ' 23412 '
        ).
   
        go_EASY_EMAIL->replace_placeholder(
        EXPORTING
            placeholder_name = '!PRICE!'
            replacement_type = 'R'          "replace placeholder with single value
            single_value     = ' 1234.90
        ).
   
        data : multi_line TYPE soli_tab,
               line TYPE soli.
        line = 'LINE 1 : LINE1 </br>'.
        APPEND LINE to multi_line.
        line = 'LINE 2 : LINE2 </br>'.
        APPEND LINE to multi_line.
   
        go_EASY_EMAIL->replace_placeholder(
        EXPORTING
            placeholder_name = '!LOG!'
            replacement_type = ' '          "replace placeholder with multiple Lines
            multi_line       =  multi_line
        ).
   

4. Build email , add recipients, send the mail

        go_EASY_EMAIL->add_email( email = p_email ).
        go_EASY_EMAIL->build_body( ).
        go_EASY_EMAIL->send_mail( 'X' ).
   

5. E-mail visible in SOST
   

Report zeasy_email_demo demonstrate the usage of class Zcl_easy_email.

Limitations:

• Number of Character in each line in HTML template <= 255
• Special care of text encoding required for HTML template. For BASIS 701 templates where stored in ISO-8859-2 encoding (code page 1401), so HTML template must be developed and maintained with ISO-8859-2 encoding. Incorrect encoding may result in unexpected results.

This solution is helpful for non-S/4 system
SAP has introduces much better solution E-MAIL templates + CDS view in S/4 systems more info.

License

MIT