{"id":7632,"date":"2025-08-24T16:46:26","date_gmt":"2025-08-24T11:16:26","guid":{"rendered":"https:\/\/www.sapewmhelp.com\/?question=what-is-an-update-function-module"},"modified":"2025-08-24T16:46:26","modified_gmt":"2025-08-24T11:16:26","slug":"what-is-an-update-function-module","status":"publish","type":"question","link":"https:\/\/www.sapewmhelp.com\/?question=what-is-an-update-function-module","title":{"rendered":"What is an Update Function Module?"},"content":{"rendered":"

An Update Function Module<\/strong> is a special type of function module that executes update tasks<\/strong> (like DB changes, inserts, updates, deletes) asynchronously<\/strong>, after a COMMIT WORK<\/code>.<\/p>\n

They are processed in update work processes<\/strong> (type UPD<\/strong> or UP2<\/strong>) instead of dialog work processes.<\/p>\n

Declared in SE37 with attribute “Update Module”<\/strong>.<\/p>\n

\u00a0Example: CALL FUNCTION 'Z_UPDATE_SALES_ORDER' IN UPDATE TASK<\/code>.<\/p>\n<\/p>\n

Types of Update Function Modules<\/h5>\n

There are two types<\/strong> of update function modules:<\/p>\n

1. V1 Update Function Modules<\/strong><\/h3>\n
    \n
  • \n

    High-priority, synchronous updates<\/strong>.<\/p>\n<\/li>\n

  • \n

    Executed immediately after COMMIT WORK<\/strong> and must finish successfully.<\/p>\n<\/li>\n

  • \n

    Used for critical database updates<\/strong> (e.g., FI document posting, material stock changes).<\/p>\n<\/li>\n

  • \n

    If a V1 update fails \u2192 the LUW (Logical Unit of Work) is rolled back.<\/p>\n<\/li>\n

  • \n

    Processed in the V1 Update work process<\/strong>.<\/p>\n<\/li>\n<\/ul>\n

    2. V2 Update Function Modules<\/strong><\/h3>\n
      \n
    • \n

      Lower priority updates<\/strong>, executed after V1 updates<\/strong>.<\/p>\n<\/li>\n

    • \n

      Used for non-critical, statistical, or secondary updates<\/strong> (e.g., updating info structures, statistics, LIS, BW extraction).<\/p>\n<\/li>\n

    • \n

      If a V2 update fails \u2192 does not rollback V1 updates<\/strong>.<\/p>\n<\/li>\n

    • \n

      Processed in the V2 Update work process<\/strong>.<\/p>\n<\/li>\n<\/ul>\n

       <\/p>\n

      Example :<\/strong><\/p>\n

      CALL FUNCTION ‘Z_UPDATE_MARA’
      IN UPDATE TASK
      EXPORTING matnr = ‘MAT001’.<\/p>\n

      COMMIT WORK. ” –> Triggers update task<\/p>\n

       <\/p>\n

        \n
      • \n

        If Z_UPDATE_MARA<\/code> is defined as V1 update<\/strong> \u2192 executed immediately after commit in update work process.<\/p>\n<\/li>\n

      • \n

        If defined as V2 update<\/strong> \u2192 executed later, after all V1 updates.<\/p>\n<\/li>\n<\/ul>\n

        Summary :<\/p>\n\n\n\n\n\n\n
        Type<\/th>\nPriority<\/th>\nRollback Effect<\/th>\nUsage<\/th>\n<\/tr>\n<\/thead>\n
        V1<\/strong><\/td>\nHigh<\/td>\nRollback of LUW if fails<\/td>\nCritical DB changes (FI, MM, SD)<\/td>\n<\/tr>\n
        V2<\/strong><\/td>\nLow<\/td>\nNo rollback of V1 if fails<\/td>\nStatistics, logs, reporting updates<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","question-category":[158],"question_tags":[178,228,177,371],"class_list":["post-7632","question","type-question","status-publish","hentry","question-category-abap","question_tags-abap","question_tags-function-module","question_tags-sap","question_tags-update-fm"],"_links":{"self":[{"href":"https:\/\/www.sapewmhelp.com\/index.php?rest_route=\/wp\/v2\/question\/7632","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sapewmhelp.com\/index.php?rest_route=\/wp\/v2\/question"}],"about":[{"href":"https:\/\/www.sapewmhelp.com\/index.php?rest_route=\/wp\/v2\/types\/question"}],"author":[{"embeddable":true,"href":"https:\/\/www.sapewmhelp.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sapewmhelp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7632"}],"wp:attachment":[{"href":"https:\/\/www.sapewmhelp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7632"}],"wp:term":[{"taxonomy":"question-category","embeddable":true,"href":"https:\/\/www.sapewmhelp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fquestion-category&post=7632"},{"taxonomy":"question_tags","embeddable":true,"href":"https:\/\/www.sapewmhelp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fquestion_tags&post=7632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}